5/16-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits, Pack of 6 - size: 5/16 in
$46.75
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5/16-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits, Pack of 6 - size: 5/16 in
$46.75
About this item
- JOBBER LENGTH: 5/16-inch cutting diameter, 3-3/16-inch flute length, 4-1/2-inch overall length, 135 degree split point, 3-flat shank
- MADE FROM HIGH-SPEED STEEL AND 5% COBALT: improve much higher heat resistance because of cobalt steel's high red hardness, provide strong durable performance compared to typical hss drill bits
- CAN BE REPEATEDLY SHARPENED AS NEEDED: cobalt drill bit's hardness is uniform throughout the entire material, so that can be repeatedly sharpened without damaging the cutting edge allowing it to drill more than hss drill bits
- APPLICATION: best used for drilling in hard metal, including stainless steel
- INCLUDE: 6 pieces of 5/16-inch cobalt drill bits with case
Overview
- Material: High-Speed Steel and 5% Cobalt
- Cutting Diameter: 0.31 inches
- Finish Type: Gold Oxide
- Shank Type: 3-Flat
- Cutting Angle String: 135 degrees