M42 Cobalt Drill Bit Set,Metric Drill bit Set（2mm-8mm,10PCS）, Metal Drill bit Set for Steel, Titanium Coated HSS-Co Metal Drill bit Set for Steel,Stainless Steel,Bolt and Stud Removing

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【10Pcs Assorted Cobalt Drill Bits】This Metal drill bit set includes 10Pcs assorted cobalt drill bits(2mm,2.5mm,3mm,3.2mm,3.5mm,4mm,4.5mm,5mm,6mm,8mm), compatible with commonly found drills on the market, and comes with a sturdy plastic case for storage.
【M42 Cobalt High Speed Steel】Constructed from M42 HSS, it features an 8% cobalt addition to regular high-speed steel, enhancing hardness, wear resistance, and heat resistance, making it ideal for drilling hard metals.
【Industrial-grade TiN coating】With a thickness five times that of a standard titanium coating, effectively improves surface hardness and wear resistance. The drill bits undergo sandblasting prior to coating, ensuring better adhesion and reduced coating detachment.
【U-shaped Groove&135° split point】Fully ground U-shaped flutes, wider than the spiral grooves of traditional drill bits, effectively reduce frictional heat and facilitate chip evacuation. With a 135°split point, it maintains better strength and durability when drilling hard metals.
【Warranty】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement.

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