MILWAUKEE SDS-Plus MX4 4-Flute Drill Bits

Single block with 4 carbide cutting edges (4×90°). For perfectly round holes and optimal anchoring; 4-flute geometry, ensures maximum extraction of dust and debris; Centering drill for easy centering and maximum hole accuracy; A greater amount of carbide leads to a longer life; 4 demolition teeth produce micro fractures in the concrete that increase speed. They pulverize the material more efficiently. 20% faster than competitors; Side chamfering of the cutting edge for greater strength in reinforced concrete. These bits are 4 times longer lasting vs 2-edged bits; New shoulder design that tapers as you get closer to the cutting edge for better dust extraction, speed and minimized friction. Up to 20% more holes per charge vs competitors; Made in Germany