Neilsen 5pc 1/2"" Dr Torque Limiting Sticks Socket Extension Bars. This set includes five 1/2-inch drive extension bars, each 8 inches (200mm) long. The bars are designed for torque limiting with settings for 65, 80, 100, 120, and 140 ft-lbs (90, 110, 135, 160, 190 Nm). They are intended for use with air or cordless impact guns only and should not be used with breaker bars or ratchets. This ensures consistently accurate torque for your fasteners. Free delivery is standard, with express delivery options available. Returns are accepted for unused items within 60 days. A VAT invoice is provided with every order.