现货3pc Step Drill 阶梯钻，宝塔钻，台阶钻 小3pc

阶梯钻，宝塔钻，台阶钻， 英制/公制 大小3PC都有供应,请联系客服Specification:Material: HSS / High Speed SteelSurface Treatment: Titanium Coated镀钛金Shank Size: 1/4" Hex ShankQuantity: 3pcs

Features:This is the New HSS Steel Large Step Cone Drill Titanium Bit Set Hole Cutter, which is made from high quality HSS steel, and with the Titanium coated to reduce friction and heatIt is very suitable for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc Package Included:1x Set (3pcs) HSS Step Drill Bit 阶梯钻产品特点：1、独特的阶梯构造，一只钻头能开多种规格尺寸孔径，一只阶梯钻抵上一盒钻头。2、不需使用中心冲，与普通麻花钻相比不易折断。现场施工，一支阶梯钻多种规格适用。3、去毛刺、倒角、开椭圆孔扩、麻花钻无法完成的功能它成为可能。4、和普通麻花钻相比。晃动小、不需领先使用中心冲也能开出漂亮孔径出来。使用工具：手枪钻、台钻。