Model No.:RP7624HChisel Shank: 2/5'' (10.2mm)Bore Diameter: 3/4'' (19.05mm)Blow Per Min: 4500Air Inlet:1/4''NPTAir Hose:3/8''IDAvg.Air consumption: 2.8CFM(79.2/min)Net Weight: 2.86Lbs(1.3kgs)Sug. Air Comp.: 2HP Feature:1) Heat-treated impact parts for durability. 2) Alloy steel barrel & heat-treated piston, coil spring retainer. 3) Ergonomic grip for comfort and stability. 4) Positive action trigger and built-in air regulator for simple power and speed control.