Incorporating the industry standard shank for carbide drilling bits, The Milwaukee 3/4" x 6" x 8", 4 Cutter SDS+ Bit (48-20-7210) has vacuum brazed, heat treated carbide steel shanks. The sharpened angle of the carbide creates two cutting edges, while two extra carbide nibs add a third and fourth cutting edge remove more debris creating rounder holes. The flute of the bit is designed for fast removal of the concrete dust from the hole, aiding in the more efficient drilling of small holes.