Jobber Length Drill Bit – 550 Series, 0.5000 in, Cobalt High Speed Steel Material, 4-1/2 in Flute, 135 ° Point Angle, 6 in OAL | 46632

46632 550 1/2 COBALT DRILL Heavy-duty construction for drilling in tough, high-tensile, and work-hardening materials under extreme operating conditions Manufactured from premium 8% cobalt (M42) high-speed steel increasing hot hardness and extending drill wear life 135° P3 split point is self-centering for reduced thrust and easier penetration Manufactured to NAS 907 type J aerospace specifications