Hex Ball-End L-Wrench Bondhus BO10664 – 5 mm hex key with ball tip

Bondhus BO10664 is a 5 mm hex L-wrench with a ball-end tip designed for manual tightening and loosening of hex socket screws where straight access is impractical. The ball-end permits entry at an angle, enabling up to 25° of engagement when fully inserted into the fastener. This tool is intended for workshop, assembly, maintenance and repair applications that require angled access or operation in confined spaces.

Advantages

The ball-end geometry provides angled engagement with fasteners, reducing the need for perfect alignment and allowing access where a straight hex key cannot reach. The L-wrench shape offers leverage for torque and a short arm for maneuverability in tight areas. Constructed to meet typical hand-tool durability expectations, the tool delivers consistent contact with hex socket screws and simplifies repetitive manual operations.

Suitable for

• Maintenance and repair of machinery and equipment where angled access is required
• Assembly tasks in manufacturing and workshops with limited clearance
• Mechanical and electronics work involving recessed or obstructed hex socket screws
• General DIY tasks that require a compact, hand-operated hex key

Key specifications

• Tip type: ball-end for angled engagement (up to 25°)
• Drive size: 5 mm hex
• Tool style: L-wrench providing leverage and a short working arm
• Intended use: manual tightening and loosening of hex socket screws
• Typical applications: workshop, assembly, maintenance, repair, electronics

How to use

Insert the 5 mm ball-end tip into the hex socket of the fastener. When full insertion is possible, the ball-end allows engagement at angles up to approximately 25°, which helps reach screws blocked by adjacent components. Use the long arm of the L-wrench for increased torque and the short arm for turning in confined spaces. Apply steady, controlled force and avoid excessive torque beyond the fastener or tool rating to prevent rounding the socket or damaging the tool.

Usage recommendations

For best results, ensure the ball-end is clean and fully seated in the socket before applying torque. Use the long arm for loosening tight fasteners and the short arm for controlled tightening. Inspect the tip periodically for wear; replace the tool if the hex profile shows signs of rounding or deformation to maintain secure engagement and prevent damage to fasteners.