Hand twist drill more accurate fast, use save more time. Hand twist drill with alloy steel, with two chucks, you can clamp 0.2-2mm small straight shank drill. Semi-automatic drive, so that punching hole saving more time, positioning more accurate. Suitable for wood, Bodhi, bone, amber, olive, walnut, plastic and other materials drilling. Name: Semi-automatic Micro-Drill Model: 498563 Specifications: Material: Alloy steel Drill range: 0.2-2mm Color: Silver Micro-Drill bits: 0.3-1.6mm(40pcs) Package included: 2 x Semi-automatic Micro-Drill 40 x Micro-Drill bits Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.