Step Drill Bit Sets XCAN HSS Step Cone Drill Bit Set: 3 12/4 12/4 20mm Titanium Coated For Wood & Metal Straight Hole Drilling From Ddmysmile, $20.84 Titanium Coated Cone Drill Bits Spiral step drill bit can be used with electric hand drill or center punch. If you need to drill perfectly round holes in a variety of materials, you need this set of 3 step drill/cone cutters. Made from HSS steel, the cutters have 3 sided shanks to prevent slippage when in the chuck and 2 fluted edges for a faster, smoother cutting action It uses magnets to make buttons, even if it is stored with one hand, there is no problem. 4-12/20/32mm Step Drill Bit Set – BAYM ELECTRIC Focus On With the sharp increase in the size of the next step, the cutting becomes faster, effectively saving your time and energy ➤【Precision design】The drill tip adopts a 135°bifurcated tip design, which not only increases the cutting speed, but also prevents the spiral step drill bit from slipping during operation. HSS Titanium Coated Step Drill Bit 4 12/4 20/4 32mm Tapered Drill Bit High Speed Steel Cone Drill Bit For Metal/Wood Drilling ; Shank Shape : 6.35mm hex shank HSS Step Drill Bit Features --Titanium alloy coating reduces friction and they are more durable than uncoated drill bits. ➤【Application】HSS step drill bit suitable for sheet metal, sink, car repair, etc. ➤【Efficient operation】Spiral step drill bit has good chip removal effect and hard material, fast cutting speed, strong practicability
