Inch/Imperial Allen Key Sets

Imperial screws need imperial keys. A metric key sits slightly loose in an inch socket - it slips under torque and rounds the screw - and classic bikes, older machinery and imported equipment all carry imperial fixings. The right key is the difference between turning them and ruining them.

The 13 piece imperial set covers the full range from 3/64 to 3/8 inch with ball ends, long arms and chamfered tips, in black oxide sealed under clear gloss enamel. The 26 piece set pairs those thirteen imperial keys with the complete metric range including the rare half sizes - one purchase for every hex screw in the workshop, whichever system it was built in.

Both sets are available to buy on Amazon - each product page links straight to the listing for your marketplace.