Fashioned with internal lock for Bosch Brute breaker hammer (model BH2760VC) and external collar for pneumatic hammers Wide chisel with two 60-degree angles clean concrete, scale and rust Cleans concrete, scale and rust; cuts troughs and some asphalt 3 in. wide chisel provides ample scraping, carving and cleaning coverage Requires a minimum demolition hammer chuck size of 1-1/8 in. 20 In. overall Compatible with BOSCH BH2760VC, BH2760VCB, BH2770VCD Breaker Hammers and 11335K Jack Hammer