... powerful, low noise Single Speed DTAW series single speed pneumatic torque wrench:1. Air source: 6bar, 600L/min compressed air2. ... Single speed design, compact, light weight, & portable3. Control the torque by air pressure, precision: ±3%, convenient, repeatability: ±1%;4. ... and low noise, less than 80dBA under max. power;5. Compact planet design, small body, higher ratio of torque/weight;6.7 ...