Features and Benefits:•• 2,500 BPM• 3” Piston Stroke• Includes Quick change chisel retainer• Variable speed trigger• 4 position built-in air regulator• .401 in. Shank opening• Plate valve• 5.38 lbs.• 9.25" in length• 4.2 cfm Air consumption• 3/8" Rec. hose size• 1/4" NPT/BSP air inlet