I was looking for flat drill sharpening and found this video. the sharpening of the drill bit in this video, if I'm not mistaken, looks like the sharpening used on gundrills. would it be correct?
thank you my friend for being so helpful. I would like to know more about the flat drill. could you bring some drawing or something that makes it clearer for me?
hello my friends, the other day I read that the barrels of firearms before 1930 (the birth of gundrills) the barrels were forged from plates until they became a tube and later, they were made from steel bars that were drilled with welded HSS drill bits. Does anyone have experience with the deep...
In mechanics, there are several ways of attaching a part to another and what catches my attention the most are the parts that are joined under the pressure fitting. I keep imagining what dimensions and clearances the pieces must have so that they fit together and then don't come apart. Could...