6-Piece Reaming Pagoda Set 4-12 4-20 4-32mm Triangular Handle Step Drill Fragarn

Step drill and drill milling cutter countersunk for metal / wood triangular shank drill for metal cone 1 box of drill bits (6pc) Features： Material: metal Size:As shown Drill and milling cutter two in one Contains： The surface of high-speed steel is coated with titanium which makes it have higher hardness and wear resistance. The drill bit adopts 118 ° X-shaped opening design which can effectively prevent the drill bit from slipping. Double straight grooves make fast drilling and chip removal smooth. Universal triangular handle makes it suitable for all kinds of equipment and more solid. The surface of titanium plate is made of high-speed steel which makes it have higher hardness and wear resistance. The drill bit adopts 35 ° edge design with sharp and wear-resistant edge. The special serrated cutting edge can be cut horizontally after drilling. The universal round handle makes it suitable for all kinds of equipment.