The 00106 Collet Style Kit uses straight shank drill bits (3/32", 1/8", 5/32", and 3/16") with matching collets, instead of the need for threaded shank drill bits. The Kit includes: a comfortable, compact, non-slip right-angle drill attachment suitable for use with any portable power drill; four short length (1.1875") National Aerospace Standard 907B non-wandering precision twist drill bits; four precision-machined threaded collets for each of the listed diameters; and a three-way steel wrench. Instructions/warranty information is also included.