"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, Air Inlet Size in. NPT 3/4, Piston Bore in. 2 1/16, Accepts Bits in. 1 1/8, CFM at Load 75, Piston Stroke in. 5 3/4, 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"