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Hi Roy I did what you told me. After a lot of pictures and Trigonometry calculation, I decided to make the fine cut 30 deg. in my mill. A set up in a homemade jig and I did the fine cut. The result

Wes made a follow-up video after everyone told him to get a Drill Doctor: https://www.youtube.com/watch?v=7nI9n_Mudyg <markrages@...> wrote: -- Regards, Mark markrages@gmail

Actually, brass does the same thing with drill bits! The usual fix is to stone a slight flat, instead of a sharp cutting edge, "dulling" the drill bit. Roy

If look the rake angle of a drill bit and use the same angle for lathe turn bits. Most metals like A36 will cut like butter. Do not try this with brass it will pull tool bit into the material Dave

It looks a bit like the Worden tool and cutter grinder. Mike

Hi Mike, no, there aren't. I designed it with sketchup regarding the basic Gadgetbuilder's idea, with the experience I got from the CNC that I designed some years ago from the

Tha'ts one sweet lookin unit ! Are there any drawing around for it somewhere ? thanks animal

Your rendition looks pretty nice, congratulations! I haven't seen a version that uses a rack & pinion to get the transverse motion, yet another interesting variation.? As I mentioned earlier, there

Here's my variant: This grinder, with its large table is going to be extended for lathe tool processing. Some holes are to be added

Unless the lathe has had a bearing upgrade, it comes with deep groove ball bearings, not tapered roller bearings. In either case, bearing preload does have to be set. Here's the SKF document, a Google

One of the great virtues of tapered roller bearings is stiffness. This is important in a lathe as you need to have the headstock remain in place under load. The greater the preload the stiffer the

If adjusting a mini lathe spindle bearings it on subject. FYI Some locations the taper roller bearings do not need per load. They need a little room to grow as it heats up.? Typically it is 0.000,5

This is one way to lube and pre-load, tapered roller bearings -- via YouTube https://www.youtube.com/shorts/BTS421UzBxs?feature=share It appears the answer is firmly tight...!

since vevor goes up to 13mm bits, that would be the top end for ER20 collets. On the larger machine (MRG-20 - link below) on the comments I found vevor answering the collet size question with " 3-13

I've thought about building a version of gadgetbuilder's 4-facet sharpener (to be found here ( https://gadgetbuilder.com/DrillSharp.html#Facet4 ) ) but for now have decided to see how the Vevor

Having a hard bolt break off in an automotive chassis application I knew it would be a problem. After making a guide bushing and clamping it in place I resharpened a masonry drill left handed. Running

Great way to lean Dave

I just ordered a Vevor drill sharpener as a birthday present for myself.? Lots of dull drill bits to work on. Mark

I have a drill doctor 750x.? Uses a diamond wheel.? But most of my are high speed.? I need borazon. So I found this at Travers -

I hand sharpen my larger bits and custom bits. For many years I have had 2 drill doctors, one is set up to handle up to 3.4" and left hand bits. However my go to is my Grizzly H8203 that I acquired at