Hex key (Allen wrench) Bondhus 3.0 mm — length 98 mm, ball end

Bondhus 3.0 mm hex key, 98 mm long with a ball end, is designed for driving and removing M3-size hex fasteners where angled access or recessed heads require a versatile tool. The ball end allows the hex key to engage fasteners at an angle, while the straight long arm provides reach into deeper or narrow cavities. Constructed to deliver consistent torque transfer, this tool is suitable for precision assembly, maintenance and repair tasks across electronics, bicycles, furniture and general DIY.

Advantages

The ball end geometry permits up to a typical 25–30° working angle for easier access to fasteners that are not aligned with the entry point. Its 98 mm length offers extended reach compared with short keys, enabling access to recessed screws without needing additional extensions. The 3.0 mm hex profile ensures snug engagement with M3 hex sockets to reduce rounding and slipping. Bondhus tools are produced with hardened steel for wear resistance and dimensional stability, providing reliable performance over repeated use.

Suitable for

• Assembling and servicing electronics and small appliances
• Bicycle maintenance and component adjustments
• Furniture assembly and tightening recessed fasteners
• General DIY repairs where M3 hex fasteners are used

Key specifications

• Hex size: 3.0 mm
• Total length: 98 mm
• End type: ball end on one end and straight on the other for reach and angle access
• Material: hardened steel for wear resistance and consistent torque delivery
• Typical working angle with ball end: up to approximately 25–30°

How to use

Select the 3.0 mm end and insert it into the hex socket of the fastener until fully seated. For straight access, use the long arm to reach recessed screws and apply steady torque. When clearance is limited or the screw is at an angle, use the ball end to engage the fastener at the permitted working angle, keeping force aligned with the driver to avoid cam-out. Withdraw the key straight from the socket after loosening or tightening to prevent damage to the fastener head.

Usage recommendations

Use the correct 3.0 mm size for M3 hex fasteners to minimize tool and fastener wear. Avoid using excessive force that exceeds the fastener or tool rating, and inspect the hex tip for wear before use. For high-torque applications, consider using a tool designed for increased leverage and confirmed torque limits.