Hexagon Key 0.035in A/F
- Faithfull FAIHK316, 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. 3/16in.A/F Faithfull FAIHK316 Hexagon Key 3/16in A/F