luwiscook HSS Cobalt Jobber Drill Bit, 2pcs 8mm M35 HSS Cobalt Jobber Twist Drill Bit Set with Plastic Case for Drilling Stainless Steel, Hard Metals, Cast Lron, Aluminium and Copper
Product description
- Premium Material Professional Drill Bit, made from M35 High-Speed Steel containing 5% Cobalt and manufactured strictly in accordance with DIN 338 standards, ensuring the drill bits deliver superior performance for all types of professional drilling tasks
- Efficient Processing and Precise Drilling 8mm Jobber Drill Bits are equipped with 135 self-centering tips, these cobalt drill bits enable fast drilling with low contact force, eliminating the need for pre-punching or pre-drilling. The precision grinding process guarantees excellent drilling results
- Perfect Heat Resistant luwiscook M35 HSS Cobalt Twist Drill Bits must be used and operated at 1500 RPM or greater for maximum efficiency. Through high-temperature quenching treatment, the hardness reaches HRC63 - 64, offering high wear resistance and strong toughness. Using cutting oil will extend the service life even further Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks
- Widely Application to Meet Diverse Needs These M35 HSS twist drill bits are designed for professional machining of various materials, including stainless steel, hard metal, cast iron, alloy steel, hard plastics, and wood, adeptly handling different working conditions
- Practical Set Configuration This set includes 2pcs 8mm cobalt straight-shank twist drill bits, stored in a plastic case. It's the perfect choice for professionals, DIY enthusiasts, and home improvement lovers
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