Features and Benefits:- 40% increase in removal of nuts and bolts- Non-Slip Socket Design- Will remove up 70% rounded nuts and bolts- Use as an impact socket or with the turbo disc for added powerThe K-Tool XD metric turbo socket set is designed for removing those stubborn nuts or bolts. The turbo socket has 40% more nut-busting torque than traditional sockets. By adding the Turbo Disc the centrifuge force enlarges increasing the power to remove nuts and bolts. Each socket can be used as a traditional socket by removing the Turbo Disc.