Pneumatic ratchet wrench] [a poor basic instructions in use soon after ratchet wrench, ratchet head gasket and the ball began to appear within the wear, over time, the ratchet head failure, and even change the ratchet head cover will pop up. If the ratchet head material was not strong enough in tightening loose back in the process, they are likely to cause the ratchet head cracking. Ingersoll-Rand 105-C3 uses a unique ratchet head design reduces two washers, minimizes the stress can. [Air ratchet wrench] Features ■ Use the jack ball ■ alternative impeccable ergonomics ■ 105-C3, swirling lines, so that operators and technicians can completely fit the hand tool, holding more comfortable, easier [control] Specifications Air Ratchet Wrench square drive head size (inch) ?: 3/8 Torque range: 7-27 Maximum torque (Nm): 34 Free speed (rpm): 250 standard bolt tightening capacity (mm): 10 Average air consumption cfm (l / min): 3 (85) air consumption cfm (l / min) at free speed: 18 (510) Noise level dBA (pressure / power): 81.8 / 92 air inlet size (inch)? :? NPT1 / 4 minimum tube diameter in (mm):. 3/8 tool length (mm): 186 Weight (kg): 0.64