Wrench, Proxxon offset box-end 14 x 15 mm, model PR23880

The Proxxon offset box-end wrench PR23880 is a compact double-ended tool with fixed 14 mm and 15 mm box heads. Its bent (offset) geometry provides improved access to nuts and bolts located in tight, recessed or angled positions, allowing secure engagement and reliable torque transfer where a straight wrench or socket may not reach. The solid construction ensures stable contact with fasteners and reduces the risk of rounding or slipping during use.

Advantages

The offset box-end design offers better clearance for hands and surrounding components while maintaining full contact on the fastener. Two adjacent metric sizes in one tool save space in a tool kit and reduce the need to switch tools repeatedly. The closed box heads distribute load around the fastener for improved grip and reduced wear, and the compact profile is suited to constrained work areas common in automotive, bicycle and mechanical maintenance.

Suitable for

• Automotive repairs in tight engine bays and underbody areas
• Bicycle maintenance where fittings are recessed or near frame tubing
• Mechanical and assembly work in workshops with limited access
• Tight spaces in plumbing and household equipment repair

Key specifications

• Box-end sizes: 14 mm and 15 mm
• Offset/bent double-ended box wrench configuration
• Fixed metric head type for positive engagement
• Compact overall length for working in confined spaces
• Durable metal construction designed for torque transfer

How to use

Select the head with the correct size for the fastener. Place the box end fully over the nut or bolt head to ensure maximum surface contact. Use the offset angle to clear nearby obstructions and apply steady, controlled force to turn the fastener. If access is very limited, position the wrench so the long side provides leverage while the bent profile clears surrounding parts. Avoid excessive impact or hammering on the wrench to prevent damage to the tool or fastener.

Usage recommendations

For safe and effective results, pair the wrench with appropriate protective equipment and ensure the fastener size matches the 14 mm or 15 mm head. Inspect the tool for wear before use and avoid applying torque beyond the user's control or the tool's intended purpose. Use lubricant on seized fasteners if necessary and work incrementally to prevent rounding of bolt heads.