1/4-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits, Pack of 12 P340403

Material: High-Speed Steel and 5% Cobalt
Cutting Diameter: 0.25 inches
Finish Type: Gold Oxide
Shank Type: 3-Flat
Cutting Angle String: 135 degrees

• JOBBER LENGTH: 1/4-inch cutting diameter, 2-3/4-inch flute length, 4-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: 12 pieces of 1/4-inch cobalt drill bits with case