Pneumatic R8 Flux Chipper 4000Bpm Duty Medium Duty Stroke Length 7/8 in Air Inlet Size 1/4 in NPT Blows per Minute 4 000 bpm Air Inlet Type NPT Air Inlet Connection Size 1/4 in Power Source Air Powered Air Consumption 4 cfm Air Pressure 90 psi Min Hose Size 3/8 in Material Application Wood Plastics Metals Accessory Free Tool Change Yes Lock-On Switch Yes