HOHXEN Inch Step Bit Sets[3 Pcs, 3/16" -1/2", 1/4"-3/4", 1/8"-1/2"], 1/4" Hex Shank Titanium Coated High-Speed Steel 4241 Multi-Size Step Drill Bit Set for Woodworking Quick and Easy Hole Drilling

Product description

• 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.
• FEATURES OF AUGER BITS - Double drain grooves, fast chip removal, reduce cutting resistance, improve working efficiency; Universal hexagon 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.
• 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.