Efficient chip removal: The spiral groove design optimizes chip removal efficiency, reduces drilling resistance and heat accumulation, reduces drill wear, and improves work efficiency. For for Material: This drill is made of HSS4241 high-speed steel, with high hardness and high performance.
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Easy to operate and not easy to fall off. Suitable for the installation of pneumatic screwdrivers, electric screwdrivers, pneumatic drills, electric drills, pistol drills, screwdrivers and other manual hexagonal tools.
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Complete Set: This premium 4-piece countersink drill bit set features M2 high-speed steel tapered guide drills in sizes 2.8mm × 8mm, 3.2mm × 8mm, 3.5mm × 10mm, and 4.0mm × 10mm. Automatic Wood-Stop: The upgraded countersink drill is constructed entirely from aluminum alloy with built-in bearings.
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Enhanced Efficiency: The central serration on these drill bits significantly improves chip evacuation, leading to smoother drilling and faster overall performance, ideals for both amateurs and professionals.
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User-Friendly Design: Featuring engraved step sizes for clear visibility, these drill bits minimize wear and tear concerns, making the drilling process more efficient and accurate. 5PCS Nitriding Step Bit Kit.
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13 Different Specifications:This drill bit set includes 13 different sizes ranging from. 5mm to 6.5mm, providing a wide range of options for various drilling needs. Hexagonal Handle Drill:The hexagonal handle design provides a secure and comfortable grip, precise and stable drilling operations.
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New 1/4 " Hex Shank Countersink Drill Bit. Material: Drill bit: high speed steel 4241, Chamfer: Carbon steel. The hex shank make it more convenient to replace the drill bit. Shank: 1/4 hex shank-6.35mm.
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Lightweight HSS Step Drill Bit Set. Whether you are a seasoned professional or a DIY enthusiast, this Lightweight HSS Step Drill Bit Set is an essential addition to your toolbox. Why Choose Our HSS Step Drill Bit Set?.
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