For measuring the resistance of aggregate to crushing. It consists of M.S. cylinderical container 150mm ± 0.5mm dia x 130mm to 140mm height with base plate 200 to 230mm/sqr x 6mm thick. Comes with a plinger of 148mm ± 0.5mm dia x 100 to 115 mm height. Supplied complete with tamping rod, 16mm dia x 600mm long, one end rounded. Also comes with one metal measure 115 ± 0.5mm dia x 180 ± 0.5mm height.