Grinding container Spex hardened steel with puck, dish, and lid made of 52-100 hardened tool steel, 6.9 inch diameter x 2.9 inch high, 17.5 lbs, 17.5cm x 7.5cm, 8kg, nominal volume 340mL, recommended grinding load 20-50mL, includes puck, ring, dish with O-ring gasket, and lid