10 Pc. 1/2" Drive Torque Limiting Aluminum Extension Set Accurately torque wheel nuts to recommended torque. Increase efficiency and eliminate damage caused by impact wrenches. No maintenance or calibration necessary. Color coded. Matte finish. Made of Cr-Mo (Chrome molybdenum). Set includes:. 1/2 Drive /8 Torque Limiting Aluminum Extensions: 65 ft./lbs., 75 ft./lbs., 80 ft./lbs., 90 ft./lbs., 100 ft./lbs., 110 ft./lbs., 120 ft./lbs., 130 ft./lbs., 140 ft./lbs., 150 ft./lbs. 78810 Yes - GASOLINE ENGINE EXHAUST (CONDENSATES/EXTRACTS)