SP Air Corporation SP-1765HD model is a 3/8″ super-fast mini impact ratchet wrench. The unit is a reaction free ratchet wrench, so the vibration shock pain from normal air ratchets is not present. Unit specifications include a drive size of 3/8″ and bolt capacity of 3/8″, a max torque of 55 ft-lbs., a free speed of 700 RPM, a vibration level of 2.9 m/s, and a sound level of 84.4 dB. SP-1765HD was upgraded and increased 30% speed and 30% more power than previous sp-1765. The super-fast mini impact wrench is four times faster than a standard mini ratchet with twice the torque. SP Air Corporation patented reaction-free impact mechanism helps minimize damage to the user’s wrist and knuckles