Supatool Premium combination spanners are manufactured from Chrome Vanadium Steel (CrV), hardened, tempered, and chrome plated for corrosion protection. Featuring a combination ring and open end, this is perfect for fastening nuts and bolts. The Supatool Premium spanner range is covered by a lifetime guarantee, and can be utilised for a number of professional or DIY applications. These spanners are an ideal length for gaining greater leverage and also offers thick US style shaft for longevity of the spanner. Supatool Premium spanners are available in sizes 6mm to 32mm, meaning Supatool Premium can tackle most trade related projects.