The BlueSpot 5-Piece 3/8" drive deep impact bolt and nut remover set is manufactured from chrome molybdenum with a black phosphate finish to protect against corrosion. Specifically designed for the safe removal of bolts that have rounded off, rusted or which have been painted over these sockets are suitable for both hand and power tools. The deep imact bolt & nut remover set can be used with a 3/8” breaker bar/ratchet and also has flats so the sockets can be also used with spanners or wrenches. Designed with 63mm deep, spiral cutting blades these sockets grip tightly to rounded off bolts, allowing you to remove them with ease. Complete with a useful carrying case for quick and easy storage.