High Carbon Steel Rip Claw Hammer, 20.0 Head Weight (Oz.), Milled, 1 3/16 in Face Dia. (In.)/ OVERALL LENGTH: 15.000 INCHES NOMINAL HEAD WEIGHT: 20.000 OUNCES HANDLE MATERIAL: STEEL SPECIAL FEATURES: CHECKERED FACE STYLE DESIGNATOR: 21 CARPENTER'S RIPPING, STRAIGHT-CLAW SPECIFICATION/STANDARD DATA: 05047-ASME B107.400 CAT 41 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD