Hex Key (Allen Wrench) Bondhus 2.5 mm, length 88 mm, model BO13954

Bondhus 2.5 mm hex key (Allen wrench), length 88 mm, is a solid single-piece tool designed to drive 2.5 mm hex fasteners. Made for straightforward mechanical tasks, this compact tool provides the necessary reach and torque for assembly, maintenance and repair jobs in constrained spaces. The straight-shank design offers reliable engagement with standard hex bolts and screws and fits typical 2.5 mm internal hex sockets.

Advantages

This Bondhus hex key combines a hardened steel construction with a precise hex profile to reduce rounding and slipping. Its 88 mm length increases accessibility to recessed fasteners while maintaining control and leverage for tightening or loosening. The single-piece design is durable and simple to use, suitable for repeated workshop or field use.

Suitable for

• Assembling furniture and fixtures that use 2.5 mm hex fasteners
• Maintenance and repair of electronics, bicycles and small machinery
• Work in confined or recessed areas where a short, straight wrench is required
• General DIY projects requiring precise torque on small hex screws

Key specifications

• Hex size: 2.5 mm
• Overall length: 88 mm
• Material: hardened steel (single-piece construction)
• Tool type: straight hex key (Allen wrench)
• Compatibility: standard 2.5 mm internal hex fasteners

How to use

Insert the 2.5 mm end of the hex key fully into the internal hex recess of the fastener to ensure full contact. Apply steady turning force, using the length of the tool to gain leverage; for higher torque needs, position the hand closer to the end of the key. For loosening, turn counterclockwise; for tightening, turn clockwise. Inspect the fastener and key tip for wear before use and avoid excessive force that could strip the socket.

Usage recommendations

Use the tool in dry, clean conditions and keep the hex profile free of debris to maintain secure engagement. When working on precision components, use controlled torque and consider a torque-limiting driver if specific torque values are required. Store the key in a tool roll or holder to protect the tip and prevent corrosion.