Hex shank drive conical driil which is a more effective cutter for drilling the tapered holes for Windsor chair rungs than the traditional spoon bit in a swing brace.
Fisch® Detent Shank Metal Working Drills, 5-Piece Set
HSS drills with a standard angle tip optimised for drilling metals. Detent shank offers use in quick change chucks.
Sizes: 3 / 4 / 5 / 6 / 8 mm.