High Speed Steel Drill Bits Heavy Duty

Heavy Duty, Tanged Shank

Fractional Sizes

R51K - HSS, Heavy Duty, Tanged Shank, Surface Treated, 118° Notched Point

Heavy duty construction provides greater strength and rigidity under severe drilling conditions. Ideal for tough steel and steel forgings. Special fllute design (20% longer) is engineered for deeper holes, application through bushings and even more re-grinds. Supplied with tanged shank for ASA split sleeve drivers. Drill diameters 33/64" through 23/32" have reduced shanks.

Package quantities:

1/8 to 1/4 - 12 per envelope

17/64 to 1/2 - 6 per envelope

33/64 to 3/4 - 1 per tube