Dead Blow Sledge Hammer, 5 lb Head Weight, Urethane over Steel Handle Material/ HEAD LENGTH: 7.000 INCHES NOMINAL OVERALL LENGTH: 20.000 INCHES NOMINAL HEAD WEIGHT: 5.000 POUNDS FACE DIAMETER: 2.750 INCHES NOMINAL HANDLE MATERIAL: STEEL SPECIAL FEATURES: DEAD BLOW; URETHANE COATED HEAD, HANDLE AND FACES STYLE DESIGNATOR: 8 SLEDGE, BLACKSMITH'S DOUBLE-FACED SPECIFICATION/STANDARD DATA: 05047-ASME B107.400 CAT 54 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD NONDEFINITIVE SPEC/STD DATA: 1 TYPE