TVWVT Step Drill Bit Set, 1/8" - 7/8" (3PCS) Four Spiral Flute Step Bits for Metal, 34 Sizes Titanium-Coated HSS Drill Bits with 1/4" Hex Shank for Stainless Steel Aluminum Wood Plastic
- 【Cobalt HSS Step Drill】Cobalt high-speed steel has high hardness and wear resistance. Its toughness and bending strength exceed standard high-speed steel, making this stepped...
- 【AlTiN Coating】The step drill bit is coated with aluminum titanium nitride, which has a hardness of 58-63HRC. Its industrial-grade structure ensures durability and longevity....
- 【Four Spiral Flute Designs】Four-slot step drill bit provides excellent stability, improving accuracy and cutting speed. It is suitable for various occasions, and can quickly...
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