Use the 2 Piece THINSET REMOVAL BIT Jackhammer set with any 1-1/8" compatible jackhammer. (Please note there are two types of 1-1/8 jackhammers. This fits the 30mm not the 28mm). With a 3 inch and 6 inch chisel, this set allows you to tackle an assortment of jobs Quickly and efficiently The wide edge removes more tile and thinset per pass. The hardened steel alloy is designed specifically for high impact stresses. This set is the perfect choice for clearing tile, thinset and other stubborn adhesives.