Bahco 9526 Combination Auger Bit Set, contains 6 of the most popular sizes. These are dual-purpose and can be used in both electric power drills and hand braces. With a single cutting edge for easy regrinding, though the need for regrinding is reduced as it is made from hardened tool steel for a longer cutting life. The threaded tip moderates a self-feed when using a power drill, but still sufficient self-feed when used in a hand brace. For quick precision cutting with all types of wood. Supplied in a wallet case. Sizes: 10, 13, 16, 19, 22 and 25mm.