MODEL Net Weight Overall Length Shank Size PistonDia Frequency Air Consumption Hose Size Stroke ACE 21PB (Kg) (Lbs) (MM) (IN) (MM) (In) (MM) (IN) bpm (m3/min/Cfm) (MM / Inch) (mm/inch) 37 81.4 710 24 15/16 32 x 160 1 1/4x6 1/4 57.15 2 1200 2.5 (88) 19 (3/4) 165 (6) Feature: * Alloy Steel Component for optimum performance. * Honed Cylinders, lapped leak-proof mating surfaces * Buffer springs, to reduce operator fatigue and shock transmission * Lubrication through oil chamber incorporated in the back-head * Extra Heavy Duty Concrete Demolition