HemBorta 13pc imperial allen key set featuring long ball end hex keys in sizes 3/64 to 3/8 inch.
Imperial Allen key set with 13 pieces in varying sizes, featuring a durable heat-treated CRV steel construction.
HemBorta 13-piece imperial allen key set featuring long ball end hex keys made from heat-treated CRV steel.
HemBorta ball end hex keys designed for greater access in tight spaces at angles up to 25 degrees.
HemBorta imperial allen keys with chamfered edges for smoother entry into screw heads.
HemBorta Imperial Allen Key Set shown in use, highlighting ball end design for accessing screws at angles up to 25 degrees.
Imperial Allen keys being used on cars, bikes, and furniture for various tasks, showcasing versatility and applicability.

HemBorta Imperial/Inch Allen Key Set Ball End Long 13pc 3/64-3/8in Hex Key Set Heat Treated Black Oxide CRV Steel

£14.99

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The Imperial Allen Key Set for the Jobs Metric Cannot Touch

Thirteen long ball end imperial hex keys from 3/64 to 3/8 inch - the sizes a metric set cannot safely turn. Classic bikes, older machinery and imported equipment all carry imperial fixings, and the right key is the difference between turning them and ruining them. Supplied in a friction clip holder with clear size markings.

The right key, guided in clean

Imperial screws need imperial keys - a metric key sits slightly loose in an inch socket, slips under torque and rounds the screw. Every key here has chamfered tips that locate the socket and guide the key smoothly in, so you engage the full hex before any force goes through it.

Reach with the ball, tighten with the short arm

The 25 degree ball end is for access - it turns a screw at an angle when you cannot get in straight. Once the screw is seated, switch to the short arm for final tightening. It grips the full hex and takes the torque the ball end is not shaped for.

Industrial CR-V steel, twin-layer finish

Each Allen key is forged from chrome vanadium steel and heat treated to resist bending and rounding under torque. The black oxide finish is sealed under a clear high-gloss enamel, giving lasting corrosion resistance with a deep black look. Keys arrive under a light protective oil film - wipe it off before first use and store the set dry.

Allen key sizes (short arm x long arm)

3/64in 12 x 73mm 9/64in 18 x 99mm
1/16in 13 x 74mm 5/32in 21 x 104mm
5/64in 16 x 79mm 3/16in 23 x 113mm
3/32in 17 x 84mm 7/32in 27 x 116mm
7/64in 17 x 90mm 1/4in 28 x 131mm
1/8in 17 x 94mm 5/16in 32 x 150mm
3/8in 35 x 170mm

Sizes subject to manufacturing tolerances, approximately +/- 2mm.

Why choose this set

  • Covers the full imperial range - no reaching for a metric key that almost fits
  • CR-V steel, heat treated, black oxide sealed under clear gloss enamel
  • Chamfered tips help prevent stripped screws and speed up assembly
  • Ball ends and long arms reach awkward angles and recessed bolts
  • Ideal for classic bikes, older machinery and imported equipment

Care and use

Wipe the protective oil film off before first use and keep the keys clean and dry. Apply light oil before long-term storage. Always match the key system to the screw - imperial keys for imperial screws - and tighten with the short arm rather than the ball end.