Hexagon Key 0.035in A/F
- Faithfull FAIHK916, Faithfull Professional quality hexagon keys made from fully hardened chrome vanadium steel. All keys from 4mm (5/32in) have chamfered edges to prevent damage to blade & fittings. All keys 3mm (1/8in) & above are marked with their size. Size.9/16in AF. Faithfull FAIHK916 Hexagon Key 9/16in A/F