Bossing mallets with dead blow action make it easier and faster to perform metal shaping and fabrication work. Shot-filled dead blow action reduces rebound while providing maximum striking force, saving your arm and wrist from strain while providing the force you need. Non-marring and non-sparking advanced polyurethane casting over welded steel handle and canister. Convex hammer faces designed for metal shaping and auto body work.27 oz. hammer with 1-7/8 in. diameter, 6-3/4 in. long head, 9-1/2 in. long handle. The Capri Tools Dead Blow Bossing Mallet Block Hammer makes metal shaping and fabrication work faster and easier. The shot-filled dead blow action reduces rebound while providing maximum striking force. It provides the force you need while saving your arm and wrist from strain. Non-marring and non-sparking advanced polyurethane is cast over heavy duty welded steel core and canister. Convex hammer faces are designed for metal shaping and auto body work.