Hex Key Set JCB 13-piece (Imperial 1/16–3/4")

JCB 13-piece imperial hex key set contains a comprehensive range of inch Allen keys from 1/16" to 3/4". The set is designed for use with hex socket fasteners commonly found in older machinery, imported equipment, and applications that specify imperial measurements. Keys are organized in a compact holder for convenient storage and transport between workshop and job site.

Advantages

The set covers a wide span of imperial sizes, reducing the need to source individual keys for fractional fasteners. Each L-shaped key provides leverage for loosening and tightening hex screws, while the compact holder keeps tools arranged and accessible. The robust finish improves resistance to wear and corrosion during regular use. The inch sizing makes this kit suitable where metric alternatives would not fit properly.

Suitable for

• Maintenance and repair of equipment with imperial fasteners
• Automotive work on older or imported vehicles using inch hex bolts
• Mechanical assembly and disassembly where fractional Allen keys are required
• Workshop toolkits and mobile service cases

Key specifications

• Number of pieces: 13
• Sizes included: 1/16", 3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8", 7/16", 1/2", 5/8", 3/4"
• Type: L-shaped hex (Allen) keys
• Measurement system: Imperial (inch / fractional)
• Holder: compact storage rack for organization and portability
• Finish: corrosion-resistant coating

How to use

Select the hex key that fits snugly into the hex socket of the fastener to avoid rounding. Insert the short or long arm as needed to gain leverage or reach recessed fasteners, and apply steady torque in the required direction. Use the long arm for greater reach or leverage and the short arm for increased control in tight spaces. Store keys in the provided holder after use to maintain order and protect the tips.

Usage recommendations

Choose the correct imperial size before applying force, avoid using worn or damaged keys on tight fasteners, and use penetrating lubricant on seized bolts when necessary. For high-torque tasks, consider a bit-holder or socket adapter compatible with inch hex bits to reduce the risk of damage to the key or fastener.