Makita 798144-5 1‘3/4" x 10" One‘Piece Bushing Tool, Spline or 3/4" hex ‘ 21/32"Makita 798144 5 Key Features APPLICATIONS : For roughing up concrete to prepare for surface treatment or new concrete DESIGN : For use with Spline or 3 4" hex 21 32" shank hammers PERFORMANCE : Clear coat to help prevent corrosion DURABILITY : CNC machined and forged from industrial grade alloy material for increased durability INCLUDES : 1 3 4" x 10" One Piece Bushing Tool, Spline or 3 4" hex 21 32" Features Manufactured using state of the art