Incorporating the industry standard shank for carbide drilling bits, Milwaukees SDS bits have carbide vacuum brazed to heat treated steel shanks. The sharpened angle of the carbide creates two cutting edges. The flute of the bit is designed for fast removal of the concrete dust from the hole, aiding in more efficient drilling of small holes. SDS bits are available from 5/32 inch to 1 inch. One per package.