Features-For aluminum Hand Drill hobby-Mini wood hand drill chuck for jewelry tool micro twist bit-Precise、 Accurate and Efficient-Suitable for wood、 plastic、rubber、model and others material to drilling hole.-Do not fit steel、 iron、stone、such hard things-Perfect for Drilling Wood、Jin Gang、Linden、Horn、Amber、Olive、Walnut、Plastic and other materials.SpecificationsMaterial: Aluminium AlloyColor :BlackChuck Clamping Range:0.3-3.2mmHigh precision、can clip 0.3 -3.2mm drill bit.Material: High Speed Steelsuitable for PCB、 crafts、 jewelry、 watch makingMini Micro Drill Bit Set Pcb HobbyMicro HSS High Speed Steel Straight shank Twist Drill BitsMini Drill Bits、Electric Drill Power ToolsPackage includedSize 1:10 pcs twist Drills Size 2:1 x Hand DrillSize 3:1 x Hand Drill+10 pcs twist Drills