3 PACK17mm 19mm 21mm Counter Weighted Impact Socket Set1/2" Square Drive Designed for use on fixings that have a high torque setting. Counter-weighted design reduces impact losses found in conventional sockets. 17, 19, 21mm Sizes cover a wide variety of crankshaft pulley bolt sizes. Suitable for GM, Ford, Honda, Kia, Toyota, Lexus, Jeep and Mazda vehiclesFeatures: Designed for use on fixings that have a high torque setting. Counter-weighted design reduces impact losses found in conventional sockets. 17, 19, 21mm Sizes cover a wide variety of crankshaft pulley bolt sizes. Suitable for GM, Ford, Honda, Kia, Toyota, Lexus, Jeep and Mazda vehicles. Specification: Contents -Sizes; 17, 19, 21mm Drive -1/2"Sq Net Weight -2.42kg Further Information We sell a wide variety of tools and workshop equipment for both the DIY and Professional markets. Alias: ys09910 Loops 3 PACK - 17mm 19mm 21mm Counter Weighted Impact Socket Set - 1/2" Square Drive