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Date

Re: Durable small hex (etc) bits?

 

After reading this I just ordered a Wiha 35392 set too.

As for the Kroil penetrating oil, I see there are several different ones. Which one is the best for loosening stubborns knob screws?

Great suggestions!

Att.,
Bernardo Santos

Em 30 de jun. de 2024, à(s) 12:56, 搁别苍é别 via groups.io <k6fsb.1@...> escreveu:

Wiha 35392


Re: BNC Frequency Limit

 

The main problem with BNC is when it comes to anything phase sensitive. A VNA shows this up really well when you wiggle the BNC plug or the cable going into it, the phase response goes haywire and prevents any meaningful repeatability of measurement.


Re: BNC Frequency Limit

 

I had some free time today so I dug out my old HP 83752A 20GHz synthesised sweeper and fed it to an Agilent E4440A spectrum analyser via a very expensive Gore cable. The cable is about 30cm long using 3.5mm connectors. I've got another Gore cable that uses 2.92mm connectors and also tried that.

Then I tried putting a decent Suhner N to BNC adaptor at the analyser input and an expensive Suhner SMA to BNC adaptor at the end of the Gore cable. I then ran the sweep again up to 20.5GHz. There was very little difference in the amplitude response all the way to 20GHz.

I'm not sure what this actually proves or disproves, as I think this is close to an ideal setup for the BNC connectors. The 83752A sweeper will have a well controlled source impedance and I think my E4440A analyser has a VSWR spec of <1.9:1 at 20GHz. If I had used a cruder 20GHz signal generator feeding to an SD frequency counter input I think the source and load VSWR would be a lot worse and there could have been sharp dips in the frequency response in some places.

Sadly, my sweeper tops out at 20.5GHz so I can't test up to the 26.5GHz limit of the PSA analyser. I could try using a doubler but I don't have anything here that can reliably produce harmonic distortion up to 26.5GHz.


Re: Durable small hex (etc) bits?

 

For screwdrivers and the like, Wiha and Wera are excellent brands, but the one I've got that I feel eclipses even those two is PB Swiss. ?They were what was in my tool kit back in the early 90s when I worked for a company that was based in Liechtenstein, and I looked for them for quite a while after leaving that place, but to no avail. ?Tried again a few years ago and managed to find them online and have since ordered flat, Phillips and Posidriv screwdriver sets from them, and will eventually get Torx and hex as well.

I'm old cschool and prefer the 'classic' handles, but they have various styles of more ergonomic ones too.

-Pat

?

> ------ Original Message ------
> From: vondicher@...
> To: [email protected]
> Sent: Sunday, June 30th 2024, 02:51 PM
> Subject: Re: [HP-Agilent-Keysight-equipment] Durable small hex (etc) bits?
?

For Posidrive I have a set of this "lesser name" brand Dave recommended (which is excellent; I find myself using it for just about everything "cross" driving). Can't think of the name.?

Not to advertise too strongly, but my favorite brand of tools is Milwaukee. Expensive, but their power tools are indestructible and supremely competent (IMHO). They also make screwdrivers and such, but Wiha is this specialized hand tools maker that seems to be the top of the game at this.?
Radu.?


?

On Sun, Jun 30, 2024 at 11:20?AM Dave Daniel via <kc0wjn=[email protected]> wrote:
?

I own several sets of tools made by Wiha. Most of them have survived decades of steady use without noticeable wear and they perform very well. I even purchased a set of Posidrive screwdrivers specifically for use on HP equipment. It has gotten to the point where if I need a hand tool for my lab, I look at Wiha first. For the shop, SK Wayne.

DaveD

?

On 6/30/2024 12:34 PM, Radu Bogdan Dicher via wrote:
?

Renee,

That's a great recommendation - I have a screwdriver or two by Wiha and they're top notch. Thank you.?
I just ordered a set of those hexes and the price is actually surprisingly?low.
Radu.?


?

On Sun, Jun 30, 2024 at 9:32?AM Radu Dicher <vondicher@...> wrote:
?

Steve,

I've heard good things about Kroil, and it's probably time I bit the bullet, but I'm a little apprehensive about applying it to a plastic part that's as conspicuous as a knob is. Is this totally harmless to plastic? I'd hate to get discoloration or other damage when trying to reuse those knobs.?
Thanks!
Radu.?


?

On Sun, Jun 30, 2024 at 9:05?AM Steve Hendrix via <SteveHx=[email protected]> wrote:
?

On 2024-06-30 11:51 AM, Radu Bogdan Dicher wrote:
> Hi all,
> I'm often running into the situation where, trying to remove to?
> replace knobs on HP (and any number of brands) units, I need to use?
> very small hex or other types of bits which get ruined very easily,?
> sometimes on first use. These bits are from sources such as Amazon,?
> where very good assortments and sets are easily available. The steel?
> they use may not be of top notch quality.?

Before you ruin any more bits or setscrews, get some Kroil. Best?
penetrating oil I've ever used, and I learned about it here or on the?
similar Tek group. I've used it to free things that I had given up as?
hopeless. Apply a bit as close to the threads as you can get, wait an?
hour or so and hit it again, and try moving it a few minutes later.

Steve Hendrix






?


?


?

Virus-free.

?

?


Re: Durable small hex (etc) bits?

 

I’ve had excellent results with both the hex and spline wrench sets from . Their products are made in the USA and have been for 111 years. One of my spline screwdriver sets dates back to 1978 and still has no wear showing after considerable use.

Prices are very reasonable as well.

Greg


Re: Durable small hex (etc) bits?

 

Whoa! JIS (yes it is Japanese Industrial Standard) is not the same thing as Philips! The angles are completely different and they are not interchangeable. Much like Pozidriv and Philips being incompatible.

Pozidriv screw heads have little tick marks between the points. JIS screw heads have a single dot or divot between two of the points. Philips have no markings.

-Dave

On 6/30/24 16:10, Jon wrote:
If you are looking for small precision JIS style cross point screw drivers, aka phillips head, Vessel makes very good sets. I use them on camera lenses since JIS is just enough different from phillips, a normal phillips driver will strip them out. JIS = Japanese Industrial Standard if I recall correctly.
On Sun, Jun 30, 2024, 13:51 Radu Bogdan Dicher via groups.io <> <vondicher@... <mailto:[email protected]>> wrote:
For Posidrive I have a set of this "lesser name" brand Dave
recommended (which is excellent; I find myself using it for just
about everything "cross" driving). Can't think of the name.
Not to advertise too strongly, but my favorite brand of tools is
Milwaukee. Expensive, but their power tools are indestructible and
supremely competent (IMHO). They also make screwdrivers and such,
but Wiha is this specialized hand tools maker that seems to be the
top of the game at this.
Radu.
On Sun, Jun 30, 2024 at 11:20?AM Dave Daniel via groups.io
<> <kc0wjn@...
<mailto:[email protected]>> wrote:
__
I own several sets of tools made by Wiha. Most of them have
survived decades of steady use without noticeable wear and they
perform very well. I even purchased a set of Posidrive
screwdrivers specifically for use on HP equipment. It has gotten
to the point where if I need a hand tool for my lab, I look at
Wiha first. For the shop, SK Wayne.
DaveD
On 6/30/2024 12:34 PM, Radu Bogdan Dicher via groups.io
<> wrote:
Renee,
That's a great recommendation - I have a screwdriver or two by
Wiha and they're top notch. Thank you.
I just ordered a set of those hexes and the price is actually
surprisingly?low.
Radu.

On Sun, Jun 30, 2024 at 9:32?AM Radu Dicher
<vondicher@... <mailto:vondicher@...>> wrote:

Steve,
I've heard good things about Kroil, and it's probably time
I bit the bullet, but I'm a little apprehensive about
applying it to a plastic part that's as conspicuous as a
knob is. Is this totally harmless to plastic? I'd hate to
get discoloration or other damage when trying to reuse
those knobs.
Thanks!
Radu.

On Sun, Jun 30, 2024 at 9:05?AM Steve Hendrix via
groups.io <>
<SteveHx@...
<mailto:[email protected]>> wrote:

On 2024-06-30 11:51 AM, Radu Bogdan Dicher wrote:
> Hi all,
> I'm often running into the situation where, trying
to remove to
> replace knobs on HP (and any number of brands)
units, I need to use
> very small hex or other types of bits which get
ruined very easily,
> sometimes on first use. These bits are from sources
such as Amazon,
> where very good assortments and sets are easily
available. The steel
> they use may not be of top notch quality.

Before you ruin any more bits or setscrews, get some
Kroil. Best
penetrating oil I've ever used, and I learned about it
here or on the
similar Tek group. I've used it to free things that I
had given up as
hopeless. Apply a bit as close to the threads as you
can get, wait an
hour or so and hit it again, and try moving it a few
minutes later.

Steve Hendrix





<> Virus-free.www.avast.com <>
<#m_-6592016301543644223_m_955355997119381868_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
--
Dave McGuire, AK4HZ
New Kensington, PA


Re: Durable small hex (etc) bits?

 

If you are looking for small precision JIS style cross point screw drivers, aka phillips head, Vessel makes very good sets. I use them on camera lenses since JIS is just enough different from phillips, a normal phillips driver will strip them out. JIS = Japanese Industrial Standard if I recall correctly.


On Sun, Jun 30, 2024, 13:51 Radu Bogdan Dicher via <vondicher=[email protected]> wrote:
For Posidrive I have a set of this "lesser name" brand Dave recommended (which is excellent; I find myself using it for just about everything "cross" driving). Can't think of the name.?
Not to advertise too strongly, but my favorite brand of tools is Milwaukee. Expensive, but their power tools are indestructible and supremely competent (IMHO). They also make screwdrivers and such, but Wiha is this specialized hand tools maker that seems to be the top of the game at this.?
Radu.?

On Sun, Jun 30, 2024 at 11:20?AM Dave Daniel via <kc0wjn=[email protected]> wrote:
I own several sets of tools made by Wiha. Most of them have survived decades of steady use without noticeable wear and they perform very well. I even purchased a set of Posidrive screwdrivers specifically for use on HP equipment. It has gotten to the point where if I need a hand tool for my lab, I look at Wiha first. For the shop, SK Wayne.

DaveD

On 6/30/2024 12:34 PM, Radu Bogdan Dicher via wrote:
Renee,
That's a great recommendation - I have a screwdriver or two by Wiha and they're top notch. Thank you.?
I just ordered a set of those hexes and the price is actually surprisingly?low.
Radu.?

On Sun, Jun 30, 2024 at 9:32?AM Radu Dicher <vondicher@...> wrote:
Steve,
I've heard good things about Kroil, and it's probably time I bit the bullet, but I'm a little apprehensive about applying it to a plastic part that's as conspicuous as a knob is. Is this totally harmless to plastic? I'd hate to get discoloration or other damage when trying to reuse those knobs.?
Thanks!
Radu.?

On Sun, Jun 30, 2024 at 9:05?AM Steve Hendrix via <SteveHx=[email protected]> wrote:
On 2024-06-30 11:51 AM, Radu Bogdan Dicher wrote:
> Hi all,
> I'm often running into the situation where, trying to remove to
> replace knobs on HP (and any number of brands) units, I need to use
> very small hex or other types of bits which get ruined very easily,
> sometimes on first use. These bits are from sources such as Amazon,
> where very good assortments and sets are easily available. The steel
> they use may not be of top notch quality.

Before you ruin any more bits or setscrews, get some Kroil. Best
penetrating oil I've ever used, and I learned about it here or on the
similar Tek group. I've used it to free things that I had given up as
hopeless. Apply a bit as close to the threads as you can get, wait an
hour or so and hit it again, and try moving it a few minutes later.

Steve Hendrix








Virus-free.


Re: BNC Frequency Limit

 

G8VKB beat me to it. The C connector is a high voltage rated connector with no commonality to N or BNC. They have tapered, contacting insulators that provide longer breakdown paths. They were devoped for pulse radar applications like IFF Tacan and pulse radar altimeters. While baynet the tolerance and tapered insulators mean they don't wobble around like cheap BNCs.
They were also popular in radiation measurement equipment.

?


Re: Durable small hex (etc) bits?

 

For Posidrive I have a set of this "lesser name" brand Dave recommended (which is excellent; I find myself using it for just about everything "cross" driving). Can't think of the name.?
Not to advertise too strongly, but my favorite brand of tools is Milwaukee. Expensive, but their power tools are indestructible and supremely competent (IMHO). They also make screwdrivers and such, but Wiha is this specialized hand tools maker that seems to be the top of the game at this.?
Radu.?

On Sun, Jun 30, 2024 at 11:20?AM Dave Daniel via <kc0wjn=[email protected]> wrote:
I own several sets of tools made by Wiha. Most of them have survived decades of steady use without noticeable wear and they perform very well. I even purchased a set of Posidrive screwdrivers specifically for use on HP equipment. It has gotten to the point where if I need a hand tool for my lab, I look at Wiha first. For the shop, SK Wayne.

DaveD

On 6/30/2024 12:34 PM, Radu Bogdan Dicher via wrote:
Renee,
That's a great recommendation - I have a screwdriver or two by Wiha and they're top notch. Thank you.?
I just ordered a set of those hexes and the price is actually surprisingly?low.
Radu.?

On Sun, Jun 30, 2024 at 9:32?AM Radu Dicher <vondicher@...> wrote:
Steve,
I've heard good things about Kroil, and it's probably time I bit the bullet, but I'm a little apprehensive about applying it to a plastic part that's as conspicuous as a knob is. Is this totally harmless to plastic? I'd hate to get discoloration or other damage when trying to reuse those knobs.?
Thanks!
Radu.?

On Sun, Jun 30, 2024 at 9:05?AM Steve Hendrix via <SteveHx=[email protected]> wrote:
On 2024-06-30 11:51 AM, Radu Bogdan Dicher wrote:
> Hi all,
> I'm often running into the situation where, trying to remove to
> replace knobs on HP (and any number of brands) units, I need to use
> very small hex or other types of bits which get ruined very easily,
> sometimes on first use. These bits are from sources such as Amazon,
> where very good assortments and sets are easily available. The steel
> they use may not be of top notch quality.

Before you ruin any more bits or setscrews, get some Kroil. Best
penetrating oil I've ever used, and I learned about it here or on the
similar Tek group. I've used it to free things that I had given up as
hopeless. Apply a bit as close to the threads as you can get, wait an
hour or so and hit it again, and try moving it a few minutes later.

Steve Hendrix








Virus-free.


Re: Durable small hex (etc) bits?

 

Hi Radu:

I've had good luck with the I Fix It tool sets.


--
Have Fun,

Brooke Clarke

axioms:
1. The extent to which you can fix or improve something will be limited by how well you understand how it works.
2. Everybody, with no exceptions, holds false beliefs.


Re: Durable small hex (etc) bits?

 

开云体育

I own several sets of tools made by Wiha. Most of them have survived decades of steady use without noticeable wear and they perform very well. I even purchased a set of Posidrive screwdrivers specifically for use on HP equipment. It has gotten to the point where if I need a hand tool for my lab, I look at Wiha first. For the shop, SK Wayne.

DaveD

On 6/30/2024 12:34 PM, Radu Bogdan Dicher via groups.io wrote:
Renee,
That's a great recommendation - I have a screwdriver or two by Wiha and they're top notch. Thank you.?
I just ordered a set of those hexes and the price is actually surprisingly?low.
Radu.?

On Sun, Jun 30, 2024 at 9:32?AM Radu Dicher <vondicher@...> wrote:
Steve,
I've heard good things about Kroil, and it's probably time I bit the bullet, but I'm a little apprehensive about applying it to a plastic part that's as conspicuous as a knob is. Is this totally harmless to plastic? I'd hate to get discoloration or other damage when trying to reuse those knobs.?
Thanks!
Radu.?

On Sun, Jun 30, 2024 at 9:05?AM Steve Hendrix via <SteveHx=[email protected]> wrote:
On 2024-06-30 11:51 AM, Radu Bogdan Dicher wrote:
> Hi all,
> I'm often running into the situation where, trying to remove to
> replace knobs on HP (and any number of brands) units, I need to use
> very small hex or other types of bits which get ruined very easily,
> sometimes on first use. These bits are from sources such as Amazon,
> where very good assortments and sets are easily available. The steel
> they use may not be of top notch quality.

Before you ruin any more bits or setscrews, get some Kroil. Best
penetrating oil I've ever used, and I learned about it here or on the
similar Tek group. I've used it to free things that I had given up as
hopeless. Apply a bit as close to the threads as you can get, wait an
hour or so and hit it again, and try moving it a few minutes later.

Steve Hendrix








Virus-free.


Re: Durable small hex (etc) bits?

 

Another vote for Wiha here. Great quality. My daily use "small drivers" set is a Wiha 26997 that I bought more than twenty years ago. Still perfect. Last year I treated myself to a bug set if full-size Wiha screwdrivers that are nothing short of decadent.

-Dave

On June 30, 2024 1:26:02 PM "Jon" <kd5sfa@...> wrote:
I also have several sets of Wiha bits/drivers, both hex and torx in metric
and sae in the smaller sizes. They are hard to beat in price and
performance.

On Sun, Jun 30, 2024, 12:15 Adrian Nicol via groups.io <Adrian=
[email protected]> wrote:

I use the Wiha Mini ones too - they are very good, so are the Wera hex
drivers in their 'Micro' range of screwdrivers - not the cheapest but like
Wiha, seem to be made of real steel (rather than recycled 'fridges and bean
tins) and perhaps more importantly for these very small sizes of grub (set)
screws, they are accurately machined to the correct size and right to the
tip at that!

On 30/06/2024 16:56, 搁别苍é别 wrote:

Radu-
amazon or where ever, I have been using them for eons...good quality.
two sets one metric and the other imperial
Wiha 35392 5 Piece Mini L-Key Short Hex Metric Set

hope that helps

搁别苍é别
On 6/30/24 8:51 AM, Radu Bogdan Dicher via groups.io wrote:

Hi all,
I'm often running into the situation where, trying to remove to replace
knobs on HP (and any number of brands) units, I need to use very small hex
or other types of bits which get ruined very easily, sometimes on first
use. These bits are from sources such as Amazon, where very good
assortments and sets are easily available. The steel they use may not be of
top notch quality.

Is anyone aware of a source of hardened, extra-strength bits? Or maybe
sets of drivers?

I am specifically asking for small bits typically needed for this kind of
job. Impact-grade bits need not apply... At least I don't see an overlap in
that Venn diagram.

For instance, for the HP 6236B knobs, I apparently need H1.3 bits. All of
my tougher sets (Harbor Freight, etc.) go as low as 1.5, but not smaller. I
ruined my Amazon set's H1.3, then tried a couple other types (which I also
ruined), and I'm afraid I'm at this point ruining the knob's set screw.

Thank you,
Radu.


--
Dave McGuire, AK4HZ
New Kensington, PA


Re: Durable small hex (etc) bits?

 

I also have several sets of Wiha bits/drivers, both hex and torx in metric and sae in the smaller sizes. They are hard to beat in price and performance.


On Sun, Jun 30, 2024, 12:15 Adrian Nicol via <Adrian=[email protected]> wrote:
I use the Wiha Mini ones too - they are very good, so are the Wera hex drivers in their 'Micro' range of screwdrivers - not the cheapest but like Wiha, seem to be made of real steel (rather than recycled 'fridges and bean tins) and perhaps more importantly for these very small sizes of grub (set) screws, they are accurately machined to the correct size and right to the tip at that!

On 30/06/2024 16:56, 搁别苍é别 wrote:
Radu-
amazon or where ever, I have been using them for eons...good quality.
two sets one metric and the other imperial

Wiha 35392 5 Piece Mini L-Key Short Hex Metric Set

hope that helps

搁别苍é别

On 6/30/24 8:51 AM, Radu Bogdan Dicher via wrote:
Hi all,
I'm often running into the situation where, trying to remove to replace knobs on HP (and any number of brands) units, I need to use very small hex or other types of bits which get ruined very easily, sometimes on first use. These bits are from sources such as Amazon, where very good assortments and sets are easily available. The steel they use may not be of top notch quality.?

Is anyone aware of a source of hardened, extra-strength bits? Or maybe sets of drivers?

I am specifically asking for small bits typically needed for this kind of job. Impact-grade bits need not apply... At least I don't see an overlap in that Venn diagram.?

For instance, for the HP 6236B knobs, I apparently need H1.3 bits. All of my tougher sets (Harbor Freight, etc.) go as low as 1.5, but not smaller. I ruined my Amazon set's H1.3, then tried a couple other types (which I also ruined), and I'm afraid I'm at this point ruining the knob's set screw.?

Thank you,
Radu.?



Re: Durable small hex (etc) bits?

 

开云体育

I use the Wiha Mini ones too - they are very good, so are the Wera hex drivers in their 'Micro' range of screwdrivers - not the cheapest but like Wiha, seem to be made of real steel (rather than recycled 'fridges and bean tins) and perhaps more importantly for these very small sizes of grub (set) screws, they are accurately machined to the correct size and right to the tip at that!

On 30/06/2024 16:56, 搁别苍é别 wrote:

Radu-
amazon or where ever, I have been using them for eons...good quality.
two sets one metric and the other imperial

Wiha 35392 5 Piece Mini L-Key Short Hex Metric Set

hope that helps

搁别苍é别

On 6/30/24 8:51 AM, Radu Bogdan Dicher via groups.io wrote:
Hi all,
I'm often running into the situation where, trying to remove to replace knobs on HP (and any number of brands) units, I need to use very small hex or other types of bits which get ruined very easily, sometimes on first use. These bits are from sources such as Amazon, where very good assortments and sets are easily available. The steel they use may not be of top notch quality.?

Is anyone aware of a source of hardened, extra-strength bits? Or maybe sets of drivers?

I am specifically asking for small bits typically needed for this kind of job. Impact-grade bits need not apply... At least I don't see an overlap in that Venn diagram.?

For instance, for the HP 6236B knobs, I apparently need H1.3 bits. All of my tougher sets (Harbor Freight, etc.) go as low as 1.5, but not smaller. I ruined my Amazon set's H1.3, then tried a couple other types (which I also ruined), and I'm afraid I'm at this point ruining the knob's set screw.?

Thank you,
Radu.?



Re: BNC Frequency Limit

 

Hi:

When HP introduced the 8410 Vector Network Analyzer one of the demonstrations was to test a BNC cable to 12 or 18 GHz, I forget which.? But to our surprise it looked great.
The connector that you might want to avoid is the one used on the input to scopes that have a 1 Meg Ohm input, called the SO-239.

--
Have Fun,

Brooke Clarke

axioms:
1. The extent to which you can fix or improve something will be limited by how well you understand how it works.
2. Everybody, with no exceptions, holds false beliefs.


Re: Durable small hex (etc) bits?

 

Renee,
That's a great recommendation - I have a screwdriver or two by Wiha and they're top notch. Thank you.?
I just ordered a set of those hexes and the price is actually surprisingly?low.
Radu.?

On Sun, Jun 30, 2024 at 9:32?AM Radu Dicher <vondicher@...> wrote:
Steve,
I've heard good things about Kroil, and it's probably time I bit the bullet, but I'm a little apprehensive about applying it to a plastic part that's as conspicuous as a knob is. Is this totally harmless to plastic? I'd hate to get discoloration or other damage when trying to reuse those knobs.?
Thanks!
Radu.?

On Sun, Jun 30, 2024 at 9:05?AM Steve Hendrix via <SteveHx=[email protected]> wrote:
On 2024-06-30 11:51 AM, Radu Bogdan Dicher wrote:
> Hi all,
> I'm often running into the situation where, trying to remove to
> replace knobs on HP (and any number of brands) units, I need to use
> very small hex or other types of bits which get ruined very easily,
> sometimes on first use. These bits are from sources such as Amazon,
> where very good assortments and sets are easily available. The steel
> they use may not be of top notch quality.

Before you ruin any more bits or setscrews, get some Kroil. Best
penetrating oil I've ever used, and I learned about it here or on the
similar Tek group. I've used it to free things that I had given up as
hopeless. Apply a bit as close to the threads as you can get, wait an
hour or so and hit it again, and try moving it a few minutes later.

Steve Hendrix







Re: Durable small hex (etc) bits?

 

Steve,
I've heard good things about Kroil, and it's probably time I bit the bullet, but I'm a little apprehensive about applying it to a plastic part that's as conspicuous as a knob is. Is this totally harmless to plastic? I'd hate to get discoloration or other damage when trying to reuse those knobs.?
Thanks!
Radu.?

On Sun, Jun 30, 2024 at 9:05?AM Steve Hendrix via <SteveHx=[email protected]> wrote:
On 2024-06-30 11:51 AM, Radu Bogdan Dicher wrote:
> Hi all,
> I'm often running into the situation where, trying to remove to
> replace knobs on HP (and any number of brands) units, I need to use
> very small hex or other types of bits which get ruined very easily,
> sometimes on first use. These bits are from sources such as Amazon,
> where very good assortments and sets are easily available. The steel
> they use may not be of top notch quality.

Before you ruin any more bits or setscrews, get some Kroil. Best
penetrating oil I've ever used, and I learned about it here or on the
similar Tek group. I've used it to free things that I had given up as
hopeless. Apply a bit as close to the threads as you can get, wait an
hour or so and hit it again, and try moving it a few minutes later.

Steve Hendrix







Re: Durable small hex (etc) bits?

 

On 2024-06-30 11:51 AM, Radu Bogdan Dicher wrote:
Hi all,
I'm often running into the situation where, trying to remove to replace knobs on HP (and any number of brands) units, I need to use very small hex or other types of bits which get ruined very easily, sometimes on first use. These bits are from sources such as Amazon, where very good assortments and sets are easily available. The steel they use may not be of top notch quality.
Before you ruin any more bits or setscrews, get some Kroil. Best penetrating oil I've ever used, and I learned about it here or on the similar Tek group. I've used it to free things that I had given up as hopeless. Apply a bit as close to the threads as you can get, wait an hour or so and hit it again, and try moving it a few minutes later.

Steve Hendrix


Re: Durable small hex (etc) bits?

 

开云体育

Radu-
amazon or where ever, I have been using them for eons...good quality.
two sets one metric and the other imperial

Wiha 35392 5 Piece Mini L-Key Short Hex Metric Set

hope that helps

搁别苍é别

On 6/30/24 8:51 AM, Radu Bogdan Dicher via groups.io wrote:

Hi all,
I'm often running into the situation where, trying to remove to replace knobs on HP (and any number of brands) units, I need to use very small hex or other types of bits which get ruined very easily, sometimes on first use. These bits are from sources such as Amazon, where very good assortments and sets are easily available. The steel they use may not be of top notch quality.?

Is anyone aware of a source of hardened, extra-strength bits? Or maybe sets of drivers?

I am specifically asking for small bits typically needed for this kind of job. Impact-grade bits need not apply... At least I don't see an overlap in that Venn diagram.?

For instance, for the HP 6236B knobs, I apparently need H1.3 bits. All of my tougher sets (Harbor Freight, etc.) go as low as 1.5, but not smaller. I ruined my Amazon set's H1.3, then tried a couple other types (which I also ruined), and I'm afraid I'm at this point ruining the knob's set screw.?

Thank you,
Radu.?


Durable small hex (etc) bits?

 

Hi all,
I'm often running into the situation where, trying to remove to replace knobs on HP (and any number of brands) units, I need to use very small hex or other types of bits which get ruined very easily, sometimes on first use. These bits are from sources such as Amazon, where very good assortments and sets are easily available. The steel they use may not be of top notch quality.?

Is anyone aware of a source of hardened, extra-strength bits? Or maybe sets of drivers?

I am specifically asking for small bits typically needed for this kind of job. Impact-grade bits need not apply... At least I don't see an overlap in that Venn diagram.?

For instance, for the HP 6236B knobs, I apparently need H1.3 bits. All of my tougher sets (Harbor Freight, etc.) go as low as 1.5, but not smaller. I ruined my Amazon set's H1.3, then tried a couple other types (which I also ruined), and I'm afraid I'm at this point ruining the knob's set screw.?

Thank you,
Radu.?