10BestProductReview Precision Twist M40CO Cobalt Steel Short Length Drill Bit, Bronze Oxide Finish, Round Shank, Spiral Flute, 135 Degree Point Angle, 39/64"
$59.91
$68.30
Amazon.com
Last update was on: July 27, 2024 12:12 pm
- High-speed steel (HSS) containing cobalt is a good combination of toughness and hardness, for use on drilling through hard substances
- Gold oxide, retains cutting fluid and prevent chip to tool welding
- 135-degree split point angle is self-centering, reduces walking, good for hard material and reduces pressure on cutting edges
- Short-length, for better rigidity and increased strength
- Round shanks, for use on a variety of tool-holding systems
