5% Cobalt Drill bits Set（1/16-3/8 inch 21PCS) M35 High Speed Steel Carbide Drill Set for Stainless Steel, Hard Metal, Cast Iron, Plastic and Wood
5% Cobalt Drill bits Set（1/16-3/8 inch 21PCS) M35 High Speed Steel Carbide Drill Set for Stainless Steel, Hard Metal, Cast Iron, Plastic and Wood
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5% Cobalt Drill bits Set（1/16-3/8 inch 21PCS) M35 High Speed Steel Carbide Drill Set for Stainless Steel, Hard Metal, Cast Iron, Plastic and Wood

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Key item features

  • 【Rare element cobalt】Metal drill bits with 5% cobalt element improve hardness, high temperature resistance, durability and performance better than conventional drill bits Note that it does not apply with glass and ceramics
  • 【Good Performance】135% Spiral Double Edge Cutting Sharp Corners Do Not Linger on the Surface, but Advance in a Predetermined Direction
  • 【Imperial sizes drill bits set】1/16"-5/64"-3/32"-7/64"-1/8"-9/64"-5/32"-11/64"-3/16"-13/64"-7/32"-15/64"-1/4"-17/64"-9/32"-19/64"-5/16"-21/64"-11/32"-23/64"-3/8 A total of 21 round straight steel drills of different diameters,Small sizes require attention to speed and temperature
  • 【Sturdy Metal Storage Box】A storage box with size identification, made of metal that is sturdy and easy to carry, select and store
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