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I also learned to freehand sharpen drills as an engineering apprentice about 50 years ago, and I still do it.I did my apprenticeship at Yale - not the locks but at the heavy earthmoving front loader plant ( it was all the same co' though ) in Wednesfield, so the holes being drilled in 3 inch thick plate were often up to 4 inch dia. These drills weren't hand sharpened, there was a big machine to do it and I was left in charge of it one day. Somehow I did a batch of 3 inch drills 'backwards' - they had negative rake. These became known as 'Shropshire drills' as I wasn't a 'yam-yam' and a few were cerimoniously welded to a girder in the toolmakers shop.
I also learned to freehand sharpen drills as an engineering apprentice about 50 years ago, and I still do it.
I did my apprenticeship at Yale - not the locks but at the heavy earthmoving front loader plant ( it was all the same co' though ) in Wednesfield, so the holes being drilled in 3 inch thick plate were often up to 4 inch dia. These drills weren't hand sharpened, there was a big machine to do it and I was left in charge of it one day. Somehow I did a batch of 3 inch drills 'backwards' - they had negative rake. These became known as 'Shropshire drills' as I wasn't a 'yam-yam' and a few were cerimoniously welded to a girder in the toolmakers shop.
