Hex Key Set 12pc Extra Large Metric & Imperial Allen Keys

A 12-piece hex key set covering extra large metric and imperial sizes for jobs where standard Allen keys are simply too small. Built for larger hex socket fixings, it gives you a practical range to hand when working on equipment, machinery and heavier assemblies.

Used across garage work, workshop maintenance, site toolkits and home repair jobs, this hex set suits anyone dealing with bigger fasteners on a regular basis. It is handy when working on mixed fittings, especially where some fixings are metric and others are SAE. For servicing, fitting and general maintenance work, having both measurement types together helps cut down on delays when the right size is needed quickly.

The set includes six metric sizes and six imperial sizes, focused on the larger end of the range where individual replacements can be awkward to track down. The larger format makes the keys easier to hold and more manageable when working on stubborn or tight fixings that need a firmer grip. Keeping both systems together in one imperial and metric Allen key set also helps avoid unnecessary switching between separate key collections, which is useful for regular maintenance and repair work. A straightforward size spread like this is well suited to repeated use in workshops, garages and heavier-duty tool kits.

Hex key set specifications

• Contents: 12-piece hex key set for extra large fasteners.
• Metric sizes: 8, 10, 12, 14, 17 and 19mm.
• SAE sizes: 3/8, 7/16, 1/2, 9/16, 5/8 and 3/4in.
• Application: Useful for larger hex socket fixings on machinery, equipment and repair work.
• Handling: Larger key size gives easier grip and control when more leverage is needed.

A practical extra large Allen key set for regular maintenance and repair work.