This Kincrome 7 piece Set of Jumbo Spanners is now stronger and lighter than ever before. Improved features include a thinner head allowing the spanner to reach tighter areas, a rounder shaft for a more comfortable grip when applying greater torque, a lighter weight, and the shorter length decreases radial movement by up to 20%. Made from forged Chrome Vanadium Steel hardened, tempered and chrome plated with a polished finish for corrosion protection. Increased Molybdenum Manganese and Nickel content provide greater strength and corrosion resistance. Sizes include 27mm, 30mm, 32mm, 36mm, 41mm, 46mm and 50mm.