HOHXEN Step Bit Set[5 Pcs, 1/4"-1-3/8", 3/16"-7/8", 1/4"-3/4", 1/8"-1/2", 3/16"-1/2"], Triangle Round Shank High Speed Steel Cone Titanium Coated Multi-Size Step Drill Bit Set for Woodworking

Product description

• UNIQUE STEP STRUCTURE - A drill can open a variety of sizes of holes, a step drill can be worth a box of drills; Compared with ordinary twist drills are not easy to break, small shake. Deburring, chamfering, round hole expansion, twist drills can not complete the work, these Pagoda step drill can complete it into.
• SUPERIOR QUALITY MATERIAL - Marked 4241, 6542, M35 are high-speed steel (HSS); 4241 material is used for wood, plastic, thin iron plate, thin aluminium plate opening; 6542 material is used for iron plate, steel plate opening; M35 material can be used for iron, steel, stainless steel sheet and other hardness of the material opening.
• FEATURES OF AUGER BITS - Double drain grooves, fast chip removal, reduce cutting resistance, improve working efficiency; Universal Triangle Round Shank is not easy to slip, not easy to slip, stronger and more durable; Self-centering easy to locate, 118 X-type opening design, effectively reduce the bit slippage.
• WIDLY APPLICATION - Step Drill Bit can be used for workpieces with a hardness of less than 25 and a thickness of less than 5mm. Applicable materials iron, aluminium, wood, plastic, stainless steel, carbon steel, insulation boards, PVC boards; Recommended tools hand drill, electric drill, table drill.