Why are heavy duty drills better than general purpose?
A. General purpose drill bits are manufactured with a 118 degree point, whereas heavy duty drill bits have a 135 degree split point, which reduces the thrust requirements & minimizes walking. The heavy construction affords efficient drilling in stainless steel & other hard materials. Our heavy duty Nitro Drill Bits come with 3 flats on the shank for positive fast grip-chucking.
