Draper Metric Hexagon Key, 10mm

Amazon

Easy access to socket head cap screws Made from chrome vanadium steel material Chemically blacked protective finish and chamfered ends Provide more swivel room for each wrench Reaches to awkward angles that regular hex keys can’t reach, Weight: 0.220462262 Pounds, Manufacturer: Draper

Electrical World

Manufactured from chrome vanadium steel that's hardened and tempered then applied with a chemically blacked protective finish and chamfered ends.