"Ideal for medium to heavy asphalt removal, demolition and industrial maintenance. Ergonomically designed breaker has more power yet fewer moving parts than competitive models. Composite valve eliminates rust and corrosion. Built-in lubricator, 1-pc. breaker housing, variable exhaust deflector, spring-loaded anvil bushings, reduced vibration and more 3-year limited warranty on fronthead and cylinder. Overall Length in. 27 1/2, Piston Bore in. 2 1/16, Accepts Bits in. 1 1/8, Piston Stroke in. 5 3/4, Air Inlet Size in. NPT 3/4, CFM at Load 75, Blows Per Minute BPM 1,250. Powr-Strok piston cycle 1 1/8in. x 6in. chuck size hex with collar 3-year limited warranty on fronthead and cylinder Model MX60A"