Technical Specification : Model No Hex Shank / Square (inch) Capacity (mm) Drive Free Speed (rpm) Max Torque (Kgs cm) Overall Length (mm) Air Consumption (cfm) Weight (Kgs) Air Inlet (inch) RY-600 / RY-600K 1/4 3/8" 6-8 7,000 207 200 6 0.96 1/4" RY-8H 1/4 3/8" 8 8,500 274 210 6 1.30 1/4" RY-6SLD 1/4 3/8" 6-8 8,000 207 175 6 1.20 1/4" SD-52 1/4 5 1,600 23-52 230 5 0.90 1/4" SD-62A 1/4 4-5 1,300 125 155 2 0.80 1/4" SD-69 1/4" 6-8 7,000 207 230 6 1.10 1/4" SD-67 / SD67W 1/4" 3/8" 6-7 7,000 207 260 6 1.50 1/4" SD-80 1/4" 6 1,800 52-130 178 5 1.10 1/4" SD-81 1/4" 8 800 52-167 216 5 1.23 1/4" SD-50A 1/4" 4 1,500 11-35 210 4 0.60 1/4" SD-4500 1/4" 5 2,200 23-52 235 4 0.80 1/4" SD-56 1/4" 6 1,800 52-130 241 5 1.50 1/4" SD-57 1/4" 8 800 52-167 267 5 1.50 1/4" RY-501 1/4" 4 1,000 4-16 230 3 0.70 1/4" Model No SQ Drive (inch) Bolt Size (mm) Free Speed (rpm) Max Torque (ftlb)(nm) Overall Length(mm) Air Consumption (mm) Weight (Kg) Air Inlet (Inch) RY-500D 1/4" 4 8000 23-79 2.3-6.9 193 4 0.66 1/4" SD-60K 1/4" 5 8000 23-69 2.3-6.9 190 4 0.66 1/4"