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Best results for dormer aircraft drill bits
Precision Twist R10CO Cobalt Steel Jobber Drill Bit, Bronze Oxide Finish, Round Shank, Spiral Flute, 135 Degree Point Angle, 3/16" (Pack of 12)
Union Butterfield 430 Drift Key for Morse Taper Shank 5
$138.01
$187.69
Amazon.com
Last update was on: November 24, 2024 4:20 am
- NAS 907 type J standards, for use in the aerospace industry
- High-speed steel (HSS) containing cobalt is a good combination of toughness and hardness, for use on drilling into hard substances
- 135-degree split-point angle, for self-centering, to reduce walking, for use with hard materials, and to reduce pressure on cutting edges
- Gold oxide finish, to help retain cutting fluid and prevent chip to tool welding
