SP Air Corporation SP-7265RP 3/8-inch the perfect impact ratchet provides a maximum speed of 600 RPM with a maximum torque of 45-feet/pounds. The standard ratchet from other manufacturers averages only 250 RPM and 25-30 feet/pounds. Long-lasting, reliable, and features a sealed Flat head. One-handed operation, and a patented impact mechanism. It is reaction free while still providing high speed and torque.