21 Pieces Drill Bits Set, KOLIER Precision Pin Vise Mini Micro Hand Drill Bits Tool

How to use? Place the bit's tip where you want to cut a hole, making sure the bit is at the same angle as the desired hole. Turn the cranking handle to rotate the bit and drill the hole. Warm Tips: With smaller drill bits, be careful not to apply excess pressure on the handle or the bit may bend or break. Features: 1, For aluminum hand drill hobby. 2, Mini wood hand drill chucks for jewelry tool micro twist bit. 3, Precise, accurate and efficient. 4, Suitable for wood, plastic, rubber, model and other material to drill hole. 5, Do not correspond to steel, iron, stone, such hard things. Specification: Material: 3 Jaw hardened steel chuck and aluminium alloy body. Color :Black Chuck Clamping Range: 1/64 - 9/64 inches (0.2 - 3.4mm) Twist drill bits size: 1.0 / 1.2 / 1.5/ 1.8mm (each size for 3 pieces) 2.0 / 2.2 / 2.5mm (each size for 2 pieces) 2.8 / 3.0mm (each size for 1 piece) Package: 1 * hand drill 20 * drill bits