Product Description 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" About Model Features Manufactured using state-of-the-art technology, CNC machined and forged from industrial-grade alloy material for increased durability Shot peened for added strength and increased surface hardness Clear-coat to help prevent corrosion For roughing up concrete to prepare for surface treatment or new concrete For use with Spline or 3/4" hex - 21/32" shank hammers Specs Product Type (RHB, DS) : Bushing Tools Shank Type : Spline or 3/4" hex - 21/32" Round Width : 1-3/4" Length : 10" Package Quantity : 1 Shipping Weight : 2.55 lbs. UPC Code : 088381-936125 From the Manufacturer Spline one piece bushing tool