SupaTool Jumbo Combination Spanner Set, Imperial, 9 Piece. Manufactured from chrome vanadium steel, hardened, polished and chrome plated for corrosion protection. This Jumbo spanner set comes with sizes 1-1/16, 1-1/8, 1-1/4, 1-3/8, 1-1/2, 1-5/8, 1-3/4, 1-7/8 and 2".