Four Spiral Flute Cobalt Step Drill Bit - 1/4''-3/4'' HSS Step Drill Bit M35 with Quick Change Hex Shank for Stainless Steel Metal Aluminium Copper Plastic Wood
【Size】Diameter 1/8''-1/2''; Total length 82mm; Working length 57mm; Number of steps 13; Height of each step 5mm; Quick change hex shank; Shank diameter 6.35mm
【Application】Suitable for drilling holes in stainless steel plate (2MM thickness and below), all kinds of metal plate, aluminum plate, copper plate, wood, plastic and other materials
【Four Spiral Flute Step Design】The 4-flute step drill is more stable when cutting, drilling accuracy is significantly improved, faster cutting speed when drilling, higher efficiency, and better chip removal, the step drill contains a variety of sizes, suitable for use in a wide range of materials and different diameters of drilling needs
【M35 Cobalt-containing High-speed Steel Material】The material is treated with ultra-high temperature heat treatment and TiAlN coating on the surface, which has high hardness, high abrasion resistance and durability; it is a good tool for processing stainless steel plate and all kinds of metal plates
【Recommended Machine】Corded Drill, Cordless Drill, Benchtop Drill. Use electric hand drill: Recommended speed not less than 2000RPM; Faster the RPM, longer the drill bit's working life. When use Angle Grinder, please install angle grinder drill chuck
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