Set 10 mũi khoan xoắn tốc độ cao HSS màu trắng mới

10Pcs HSS High Speed White Steel Twist Drill Bit Set For Rotary Tool New 100% brand new and high quality Material: Steel Color: Silver This 10 pcs white steel drill bits are for DIY grinding and punching (wood, metal, mold polishing purposes). These are high quality white steel drill bits for Electric grinding accessories. Can be used for drilling, such as metal, plastic,aluminium and wood, good wear resistance, punching strength is strong. Features: Can be used for punching, such as metal, plastic,aluminium and wood. Good wear resistance. High working efficiency, perfect punching effect and long using life. Convenient to drilling, simple to use, safe and reliable. Widely used in precision punching technology and slotting, such as vajra bodhi olive nuclear walnut punching. Specifications: Diameter: 0.5;0.6;0.8;1.0;1.2;1.5;1.8;2.0;2.5;3.0mm / 0.02;0.02;0.03;0.04;0.05;0.06;0.07;0.08;0.10;0.11in Diameter Length 0.5mm 23mm 0.6mm 29mm 0.8mm 35mm 1.0mm 34mm 1.2mm 43mm 1.5mm 49mm 1.8mm 51mm 2.0mm 51mm 2.5mm 60mm 3.0mm 61mm No retail package Quantity: 10Pcs (1Set) Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!!