Shedendman
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Anyone tried sharpening these,if so how did you go about it?
Mine are blunt,but only the 8 10 12 mm cutting edges,ones i use mostly
Mine are blunt,but only the 8 10 12 mm cutting edges,ones i use mostly
If you know of decent cheep Chinese step drills do pass it on, the only cheep ones I have tried were Lidl ones they were useless.I just buy another cheap one from CHINA perhaps it could be done on a lathe?????
Can't you run a sharpening stone along the groove like you would to sharpen router bits
If you know of decent cheep Chinese step drills do pass it on, the only cheep ones I have tried were Lidl ones they were useless.
As for sharpening them, who knows, I treat them as a consumable.
see i like the lidl ones
Even using them nice and slowly with a dab of Rocol a sheet of 3mm stainless steel blunted one very quickly.see i like the lidl ones
Even using them nice and slowly with a dab of Rocol a sheet of 3mm stainless steel blunted one very quickly.
I also hand grind 5/16" drill bits to drill out factory spot welds when I'm
removing sheet metal panels. I grind it so it's flat across the cutting tip,
and leave a slight point in the middle to pre-spot the weld area. Works great!
You could always do a vidYes, it's possible. Even on a "step" drill bit. I do this all the time, by hand,
on my bench grinder. It's a learned skill. I don't know how to instruct you
properly here. I'd have to "show" you.
I also hand grind 5/16" drill bits to drill out factory spot welds when I'm
removing sheet metal panels. I grind it so it's flat across the cutting tip,
and leave a slight point in the middle to pre-spot the weld area. Works great!