The Tormek DBS-22 sharpens twist drill bits from 3 mm (1/8 in) to 22 mm (7/8 in) with a four-facet point.
You can set the tip and lip relief angles for the work, and the water cools the edge the whole time so the steel isn't damaged. Tormek says a four-facet point drills better and lasts longer: in a 2010 test by Uddeholm, its sharpened 6 mm bits drilled 327 holes on average in hardened steel, against 72 for new S-tip bits. It comes with a magnifying glass for lining up the bit, a jig setting template with magnets and a tube of PTFE lubricant. Tormek says it works best on the T-8.
Engineer Torgny Jansson founded Tormek in 1973 to build a modern version of the old Swedish water-cooled grindstone. The name is short for Torgny's Mekaniska, and the very first model was driven by an electric hand drill. Tormek is based in Lindesberg, Sweden, where all of its product development, engineering and production still take place.