Buy Hex Keys & Allen Wrenches Online in Australia
Hex Key + Allen Wrench Selection — Quick Reference
Hex keys (Allen wrenches) drive internal hex socket fasteners — SHCS + button head + grub screws + countersunk socket screws. Selection turns on format (L-key vs T-handle vs folding set), tip type (ball-end vs hex), material grade, and size range (metric + imperial).
| Format | Best For | Common Spec |
|---|---|---|
| L-Key (Standard Allen) | Workshop default — pocket + bench use | 0.7mm – 19mm metric, 0.028" – 3/4" imperial |
| L-Key Ball-End | Access at angles — up to 25° off-axis | Less torque capacity than hex tip, useful for access |
| T-Handle | High-torque application + production speed | Bondhus + Wiha T-handle sets, sliding T versions |
| Long-Arm L-Key | Deep recess + behind-obstruction access | Extended shaft, ball-end usually included |
| Folding (Pocket) Set | Mobile tradies + pocket-carry | Multi-size in folding magazine — Wiha + Bondhus |
| Torx + Hex Combo Set | Mixed-fastener environments — automotive + electronics | Combined T-handle stand |
| Hex Power Bit (1/4" Hex Shank) | Driver + impact gun use | For impact drivers + cordless drills |
| Hex Socket (Drive) | Torque wrench + socket-drive use | 1/4", 3/8", 1/2" drive options |
Quality matters: Premium brands (Bondhus ProGuard, Wiha) hold +/-tolerance tight enough that the key fully seats in the socket without rounding. Cheap hex keys are slightly oversize + round out the screw socket. Size matching: M5 SHCS = 4mm hex | M6 = 5mm | M8 = 6mm | M10 = 8mm | M12 = 10mm. Brands: Bondhus, Wiha, Stahlwille, Ko-Ken, Champion. Companion: hex power bits, SHCS, hand tools.
Hex Keys and Allen Wrenches
Hex keys — also known as Allen keys or Allen wrenches — are one of the most commonly used hand tools in engineering and maintenance. AIMS carries an extensive range from premium brands including Bondhus, Wiha, Stahlwille, Ko-Ken and Champion, covering individual keys, folding sets and T-handle sets in both metric and imperial sizes.
Key Brands
Bondhus
Bondhus is a benchmark brand for hex keys in professional workshops. Their ProGuard-finished keys resist corrosion and are colour-coded for quick size identification. Available in ball-end L-wrench style, T-handle and long-arm versions, the Bondhus range covers metric and imperial in both individual and set formats.
Wiha and Stahlwille
Wiha and Stahlwille represent the premium German-engineered end of the range. Wiha hex keys are precision ground and hardened for close-tolerance fasteners and high-torque applications. Stahlwille tools are favoured in automotive and aerospace environments where dimensional accuracy and durability are critical.
Ko-Ken
Ko-Ken hex keys offer high-quality Japanese manufacturing with tight dimensional tolerances, popular in precision assembly and maintenance applications.
Types and Styles
L-Wrench (Short and Long Arm)
The classic L-wrench is the most versatile format. The short arm provides torque; the long arm accesses fasteners with limited clearance. Ball-end versions allow entry at up to 25–30 degrees off-axis, useful in confined spaces.
T-Handle Hex Keys
T-handle hex keys deliver more torque than L-wrenches and are faster to use repetitively. Preferred for production work, assembly lines and anywhere a large number of the same fastener needs driving in quick succession.
Metric vs Imperial
AIMS stocks both metric (mm) and imperial (inch/AF) hex key ranges. Most modern machinery uses metric fasteners, but imperial is still common in older equipment, American-made machinery and plumbing hardware. When ordering, confirm the drive size needed — a 1/4" AF fastener and a 6mm hex look similar but are not interchangeable.