Floor Sand Rammer Hole Diameter 3 in Piston Bore Size 1 5/16 in Piston Stroke Length 4 in Maximum Blows per Minute 1 590 bpm Butt Diameter 3 in Tool Weight 27 lb Air Inlet Gender Female Air Inlet Size NPT Air Consumption 29 cfm Air Inlet Type 1/4 in NPT Female Duty Heavy Handle Type Straight Minimum Hose Size 3/8 in Product Type Sand Rammer Retainer Type Latch Sand Rammer Style Floor Series 241A1M Series Sound Level 92.3 dBA Standards ISO 15744 ISO 28927