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. 48 oz. hammer is perfect for shaping even heavy gauge sheet metal.48 oz. hammer with 2-3/4 in. diameter, 8 in. long head, and 11-1/2 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.