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5/16 Cobalt Drill Bits for Metal and Hardened Steel (5Pcs) - size: 5/16 in (5 pcs)

Amazon Import

5/16 Cobalt Drill Bits for Metal and Hardened Steel (5Pcs) - size: 5/16 in (5 pcs)

$16.13

About this item M35 Cobalt 5% Material: High cost, but hardness is up to 67, cut faster and has a long life, up to 12 times compared with the average HSS titanium coated bit Hardened Full Grinding Process: Increases wear resistance, sharp and durable, used for stainless steel, cast iron, hard sheet, flat bar, mild tube, zinc alloy, titanium, aluminum and hardened metal Wide Range Of Applications: This product can drilling through hard metals such as stainless steel, cast iron, zinc alloy etc., while the HSS titanium-plated version you usually see can only be used on soft materials such as wood and plastic Jobber Length: 5/16 inch cutting diameter, 3 inch flute length, 4-1/2 Inch overall length, 135 degree split point, rounded for Easy Fitting into Any Drill or Rotary Hammer Include: 5pcs of 5/16" cobalt drill bit are packed in a plastic case for easy storage and carrying Use Notices: Drill bit should be vertical to the workpiece when used; controling low speed from 200 to 1000 rpm; using cutting fluid will stay cool to make the bit last longer Overview Material: Cobalt Steel Cutting Diameter: 7.94 millimeters Finish Type: Gold Oxide Shank Type: Round Cutting Angle String: 135 degrees

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