Moisture Density Hammer 5.5 pound

Manual, moisture/density hammer meets ASTM and AASHTO specs. It incorporates a 5.5 lb (2.54kg) weight and a drop of 12" (305mm) with a 2" (51) face. Guide sleeve has four vent holes in each end of sleeve to release built-up air pressure. Machined steel, plated for rust resistance. Features resilient rubber ball handle. Hammer weight: 5.5 lbs. (2.5kg) Hammer fall: 12" (305mm) H-4160A