Hexagon Key 0.035in A/F
- Faithfull FAIHK564, 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.5/64in AF. Faithfull FAIHK564 Hexagon Key 5/64in A/F