Sealey Combination Spanner Set 12pc Lock On™ 6pt Metric AK63921Drop 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. This not only provides added strength but also prevents further damage to worn or