Hexagon Key 0.035in A/F
- Faithfull FAIHK764, 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.7/64in. AF. Faithfull FAIHK764 Hexagon Key 7/64in A/F