7/16" Triple Spiral Flute Cobalt Drill Bit Set (Pro - TiAlN Coated), Metal Drill Bit Set for Steel, Hardened Metal, Stainless Steel, 5-Piece with Index Storage Case
Three-Flute Spiral Design: The Unique Triple-Flute Design Provides Higher Roundness, Smoother Wall Surfaces, Superior Chip Removal Capabilities and Better Heat Dissipation Performance, Revolutionary Improvement in Drilling Efficiency ; Cutting speed increased by 40%; feed rate for deep hole machining increased by 50%; chip removal efficiency increased by 40%)
5pcs 7/16" Cobalt Drill Bits Set - Includes 5pcs 7/16" Titanium aluminum nitride coated Metal Drill Bits with Index Storage Case.
Titanium Aluminum Nitride Coating (TiAlN) - Increases surface hardness to 89HRC with outstanding heat-resistance, so your drill bit cuts fast and stay sharp.
ZNXIMER Cobalt Drill Bit Set Pro - A Metal Drill Bit Set for Steel, Hardened Metal, Stainless Steel. Consisting of 21 titanium aluminum nitride coated cobalt drill bits with Triple Spiral Flute and 135° Split Point Tip offers exceptional performance specifically for drilling through metal.
Quality commitment - If you are not fully satisfied for any reason, Please contact us for 100% refund or replacement. Have any questions, Please feel free to contact us and we will be happy to assist you.
