• Industrial Quality High Speed Steel

• Precision grounded from solid

• Vacuum heat-treated to improve uniform hardness to HRc 64-66

• 135 Degree Split Point prevents and reduces wobbling 

Black & Gold Bits - Jobber Length:

Cobalt Steel Jobbers - Jobber Length:

3 Flats on shank for 3/16" and up

1/16" ... 19/64" has 12 drills in one envelope

5/16" ... 1/2" has 6 drills in one envelope