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Armstrong threading tool (was "[LL] Lantern toolpost dimensions")

Miket_NYC All Messages By This Member #118817 "The Armstrong threading tool where it's kept sharp by honing the top as the tool wears." I recently got one of these threading tools also (though I think mine is Williams brand rather than Armstrong). It's a great idea: a disk with a 60° angle turned on the edge that you rotate as it wears down. You sharpen it only on top. The head is also canted at the correct angle for threading. I don't want to use a lantern tool post, but there's no reason this can't be clamped somehow onto the regular compound. Here are two photos taken from ebay. (This is not my tool, but looks similar). Mike Taglieri? toggle quoted message Show quoted text On Tue, Feb 13, 2024, 10:26 AM Ron K via <ron.kellis=[email protected]> wrote: It does! Thanks. I have two tools I'd like to try just for my own knowledge. The Armstrong threading tool where it's kept sharp by honing the top as the tool wears. An Armstrong goose neck parting tool with the anti-chatter notch. Too many "I'm a gunna." projects in the queue to make one like Mark did, but I've always been curious.? Again, thanks! Ron 20240117_144757~2.jpg
Bill Williams All Messages By This Member #118818 An? excellent tool, I have had and used one since 1967. You might want to make a QC fixture?to support the cutting tool in your QC toolpost. You can make your own form tools to work the same way!? ?Bill in Boulder toggle quoted message Show quoted text On Fri, Feb 16, 2024 at 6:00?AM Miket_NYC <mctaglieri@...> wrote: "The Armstrong threading tool where it's kept sharp by honing the top as the tool wears." I recently got one of these threading tools also (though I think mine is Williams brand rather than Armstrong). It's a great idea: a disk with a 60° angle turned on the edge that you rotate as it wears down. You sharpen it only on top. The head is also canted at the correct angle for threading. I don't want to use a lantern tool post, but there's no reason this can't be clamped somehow onto the regular compound. Here are two photos taken from ebay. (This is not my tool, but looks similar). Mike Taglieri? On Tue, Feb 13, 2024, 10:26 AM Ron K via <ron.kellis=[email protected]> wrote: It does! Thanks. I have two tools I'd like to try just for my own knowledge. The Armstrong threading tool where it's kept sharp by honing the top as the tool wears. An Armstrong goose neck parting tool with the anti-chatter notch. Too many "I'm a gunna." projects in the queue to make one like Mark did, but I've always been curious.? Again, thanks! Ron Attachments: 20240117_144757~2.jpg
davesmith1800 All Messages By This Member #118819 Aloris use to make a holder for threading back 1970's.? But most use carbide today or just sharpen HSS tool bits.? Dave?
davesmith1800 All Messages By This Member #118820 The??Armstrong tool holders are 3/4" to 7/8" for small lathes you can mill down to fit a Aloris AXA 1/2" tool bit holder.? Now you can adjust the Armstrong tool holders and not need the American tool holder.? They can come handy for some types of work. Dave?
davesmith1800 All Messages By This Member #118821 Here a few photos?
davesmith1800 All Messages By This Member #118822 Note the bottom mill off to fit holder. Not my holder Dave?
DAVID WILLIAMS All Messages By This Member #118826 开云体育 Dear Dave, Thank you for the images & information. Very interesting. (Every day is a day a school). David UK. toggle quoted message Show quoted text On 16 Feb 2024, at 23:45, davesmith1800 <davesmith1@...> wrote: ?Here a few photos? <Screenshot_20240216-144325_Edge.jpg> <6129933985ba2dd568074bd7.jpg>
davesmith1800 All Messages By This Member #118827 I have two Armstrong tool holders I plan to mill down.? One use for the follower rest and triple knurling tool.? My last lathe I also a American tool holder and did need to mill. Dave? toggle quoted message Show quoted text DAVID WILLIAMS Feb 16? ? Dear Dave, Thank you for the images & information. Very interesting. (Every day is a day a school). David UK
Bill Williams All Messages By This Member #118828 My attempt to mll down an Armstrong tool holder ended in blunting the inserts in a carbide face mill! Be forewarned.? ?Bill in Boulder toggle quoted message Show quoted text On Sat, Feb 17, 2024 at 9:04?AM davesmith1800 <davesmith1@...> wrote: I have two Armstrong tool holders I plan to mill down.? One use for the follower rest and triple knurling tool.? My last lathe I also a American tool holder and did need to mill. Dave? DAVID WILLIAMS Feb 16? ? Dear Dave, Thank you for the images & information. Very interesting. (Every day is a day a school). David UK
Miket_NYC All Messages By This Member #118829 I did it once with a belt sander. Mike Taglieri? toggle quoted message Show quoted text On Sat, Feb 17, 2024, 11:55 AM Bill Williams <BWMSBLDR1@...> wrote: My attempt to mll down an Armstrong tool holder ended in blunting the inserts in a carbide face mill! Be forewarned.? ?Bill in Boulder On Sat, Feb 17, 2024 at 9:04?AM davesmith1800 <davesmith1@...> wrote: I have two Armstrong tool holders I plan to mill down.? One use for the follower rest and triple knurling tool.? My last lathe I also a American tool holder and did need to mill. Dave? DAVID WILLIAMS Feb 16? ? Dear Dave, Thank you for the images & information. Very interesting. (Every day is a day a school). David UK
Bill Williams All Messages By This Member #118830 Strangely enough that's how I got my Armstrong knurling tool to fiit in my square turret!? ?Bill toggle quoted message Show quoted text On Sat, Feb 17, 2024 at 1:04?PM Miket_NYC <mctaglieri@...> wrote: I did it once with a belt sander. Mike Taglieri? On Sat, Feb 17, 2024, 11:55 AM Bill Williams <BWMSBLDR1@...> wrote: My attempt to mll down an Armstrong tool holder ended in blunting the inserts in a carbide face mill! Be forewarned.? ?Bill in Boulder On Sat, Feb 17, 2024 at 9:04?AM davesmith1800 <davesmith1@...> wrote: I have two Armstrong tool holders I plan to mill down.? One use for the follower rest and triple knurling tool.? My last lathe I also a American tool holder and did need to mill. Dave? DAVID WILLIAMS Feb 16? ? Dear Dave, Thank you for the images & information. Very interesting. (Every day is a day a school). David UK
davesmith1800 All Messages By This Member #118831 I know I say mill? But I plan on using a 4?" Angle grinder and 16g stone and just grind the top where set screw hit. . In will take about 5 minutes it will be done.? It is faster than setting up mill for a hard cut.? Dave?
davesmith1800 All Messages By This Member #118832 Bill Williams Feb 17? ? My attempt to mll down an Armstrong tool holder ended in blunting the inserts in a carbide face mill! Be forewarned To cut that steel I think 1060 . You slow speed and HSS will work. Use dark cutting oil.? Brush lots of oil as you cut.? Dave?
davesmith1800 All Messages By This Member #118833 Bill Williams Feb 17? ? My attempt to mll down an Armstrong tool holder ended in blunting the inserts in a carbide face mill! Be forewarned. Bill in Boulder FYI? Using carbide is not best at times for milling hard steel like the Armstrong tool holders.? If trying to mill hard steel use grade C5. They not as hard like grade C2 and brittle.? I found HSS tool bits does better job but not fast like carbide.? Dave?

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