Compact size, great for working in tight areas. Lever type throttle control. Lightweight and compact. 1/4" Palm Ratchet Wrench Specifications: Square Drive: 1/4" Free Speed: 240rpm Overall Length: 5-1/2" Max. Torque: 16ft./lbs. Bolt Capacity: 1/4" Air Inlet Thread: 1/4" NPT Air Hose I.D. Size: 3/8" (10mm) Avg. Air Consumption: 4cfm Air Pressure: 90psi 3/8" Palm Ratchet Wrench Specifications: Square Drive: 3/8" Free Speed: 160rpm Length: 8-1/3" Max. Torque: 50ft./lbs. Std. Bolt Size: 3/8" Air Inlet: 1/4" NPT Avg. Air Consumption (1/min): 110(4 cfm) Air Pressure: 90psi