Drop-forged, Chrome Vanadium steel combination spanners. Hardened and tempered with a fully polished micro satin finish for corrosion resistance. 15° Offset ring ends keep knuckles clear of obstructions. 35° Angled offset open-end allows for improved access. Feature specially machined flutes in the walls of the ring end which enable use on up to 85% rounded fasteners. Sizes: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19mm., Weight: 2.74255053928 pounds, Manufacturer: Sealey