MX4 4-CUTTER SDS PLUS ROTARY HAMMER DRILL BIT SDS+ MX4 7/8" X 6" X 8"48 20 7225 SOLID HEAD CARBIDE DELIVERS UP TO 5X LONGER LIFE IN CONCRETE WITH REBAR REBAR GUARDS FOR MAXIMUM DURABILITY IN HARD AGGREGATE AND REBAR SHARP CENTERING TIP FOR EXACT SPOT DRILLING IN CONCRETE AND METAL DECKING 4 CUTTER DESIGN PREVENTS LOCK UP IN REBAR, REDUCING DOWNTIME VARIABLE FLUTES REMOVE DUST FASTER, REDUCING HEAT & DELIVERING UP TO 20% MORE HOLES PER BATTERY CHARGE GERMAN MADE MEETS ANSI B212. 15 TO FIT COMMON ANCHORS WEAR MARK