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Auniwaig 7mm HSS Straight Shank Cobalt Twist Drill Bit-Jobber Length Fully Ground Straight Shank – 5% Cobalt M35 Grade, Champagne for Stainless Steel Cast Iron 1PCS

KWD 4.500

Brand
Auniwaig
Weight
10 g
Size7mm
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Special Features

  • 【SIZE】- Shank / Cutting Edge Diameter:10mm/0.39-inch;Total length:133mm/5.24inch;Our Drill Bits Contain 5% Cobalt, Are Fully Grounded for a Precision Drilling Diameter
  • 【COBALT STEEL】- Manufactured from M35 cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit
  • 【SELF CENTERING 】-Fully ground spiral flute discharge scraps quickly, reduce friction and heat, therefore provides a faster, cooler and more efficient drilling performance; 135° Split Point with straight shank prevents slippage and makes drilling stable and precise. No center punch is needed., fit for standard drill chucks and regular round collet chucks.
  • 【WIDE APPLICATIONS】-Drill Bits are successful in cutting hard metals such as stainless steel;copper;aluminum alloy;and also can be used for softer materials
  • 【SPECIAL DESIGN】- Cobalt high speed steel for super abrasive resistance in tough metals;improve much higher heat resistance because of cobalt steel's high red hardness

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