ITEM NAME:Metal Hand Twist Drill With 10 HHS Drill Bits Drilling Tool Watch Repair Too Bj.The chuck of hand drill has a wide grasp range from 0.3mm to 3.6mm which can fit for many sizes of drill bits. Material: Copper alloy(drill), high speed steel(bits). Drill Bits: 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.2mm, 1.5mm, 1.8mm, 2mm.
