... steel Tip material:YG8 Packing:Aluminium box Contents:6*straight bits 1/8, 1/4, 3/8, 1/2, 3/ ... 4, 3/83*rounding bits 1/4, 3/8, 1/22*dovetail bits 9/16, 1/23*slot cutter bits 1/4, 5/16 ... , 25/642* double roman bits R1/8, R1/42*roman ogee bits R5 ... /32, R1/490 deg V-groove bits ...