Milwaukee 48-20-3972 SDSMAX 4CT 1-1/4" X 18" X 23"

Breaker points for up to 20% faster drilling speeds. Rebar guards for increased durabilty in hard aggregate and rebar. Variable flutes for up to 15% more holes per battery charge. Reinforced Flutes to avoid bit breakage. Wide flute entrance for increased faster dust removal.