In terms of sharpening facilities, no other item of workshop equipment in my estimation is more widely catered for than the humble twist drill. This is probably due to the large number of trades that will use this tool, ranging from the DIY exponent through to the experienced tool maker, passing on the way, such trades as builder, plumber, cabinet maker, etc. etc. First, let us consider the possibility of sharpening drills by hand. There are those who consider that this is a perfectly acceptable approach and for a few in industry, who sharpen drills on a very regular basis, just possibly it is, though 1 have my reservations. Two things are being aimed at when sharpening a drill; these are that it cuts freely and to size. The first is easy to achieve, the second very much more difficult. There is no point in having a set of drills in 0.1mm increments if the 7.6mm drill actually drills a hole 7.8mm diameter.
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