Hex Key (Allen Key) wiha 2.5 mm model 369B 2.5

wiha Hex Key (Allen Key) model 369B 2.5 mm is a single-piece hand tool with a 2.5 mm hexagonal tip designed for engaging hex socket screws and bolts. The compact form factor provides precise control in confined spaces and repetitive fastening tasks. This hex key is intended for users who need a reliable 2.5 mm drive for assembly, maintenance or repair work in mechanical, electronic and bicycle applications.

Advantages

The solid construction ensures consistent torque transfer and reduced risk of rounding fastener heads. Its straight hex profile gives accurate engagement with socket screws while the compact size supports work in tight or recessed locations. The single-piece design minimizes play and delivers a stable feel during use.

Suitable for

• Mechanical assembly and machine maintenance
• Electronics and small device repair
• Bicycle adjustment and component servicing
• General workshop fastening tasks requiring a 2.5 mm hex drive

Key specifications

• Drive size: 2.5 mm hexagon
• Tool type: single-piece hex key (Allen key)
• Material: hardened steel for wear resistance and strength
• Tip profile: standard hexagon for secure screw engagement
• Finish: corrosion-resistant finish for durability in workshop conditions

How to use

Insert the 2.5 mm hex tip fully into the hex socket of the screw to ensure a firm mechanical fit. Apply steady rotational force in the required direction to tighten or loosen the fastener, keeping the tool aligned to avoid cam-out. For fasteners in confined or recessed areas, use the shorter effective length to prevent slippage and improve control. Periodically inspect the tip for wear and replace the tool if the profile becomes rounded.

Usage recommendations

Use appropriate personal protective equipment when working with tools. Avoid applying excessive force beyond the fastener's specifications to prevent damage to the screw or the tool. Store the hex key in a dry place to maintain the corrosion-resistant finish and verify tip condition before precision tasks in electronics or delicate assemblies.