Open-end ring wrench Dedra 41 mm model 1467

Dedra 41 mm model 1467 is an open-end and ring combination wrench manufactured for use on large fasteners. The tool combines a flat open jaw on one end with a closed ring on the other, both sized to work with 41 mm nuts and bolts. Constructed as a single fixed-size hand tool, it is intended for mechanical, automotive and maintenance applications where a precise fit and higher torque transmission are required.

Advantages

The combination of an open-end jaw and a ring head provides versatility: the open end allows quick placement and work in tight spaces, while the ring delivers a secure, multiple-point contact for higher torque and reduced risk of rounding. The fixed 41 mm sizing ensures consistent engagement with large fasteners, and the single-piece design reduces play and potential misalignment. The tool's geometry facilitates leverage and access to deep or recessed nuts.

Suitable for

• Automotive repair involving large wheel or chassis fasteners
• Mechanical assembly and disassembly of machinery with 41 mm bolts
• Industrial maintenance and service work on heavy equipment
• Plumbing or construction tasks that require work on large threaded fittings

Key specifications

• Size: 41 mm working profile for both open-end and ring
• Type: combination open-end and ring wrench (fixed size)
• Usage: manual hand tool for tightening and loosening fasteners
• Design: single-piece construction for reduced play and improved alignment
• Typical applications: mechanical, automotive, industrial maintenance

How to use

Select the wrench so the 41 mm open end or the ring matches the fastener. Place the open end over the nut or bolt head for quick engagement or use the ring end to obtain full contact around the fastener for higher torque and safer turning. Apply steady force in the correct turning direction, avoiding sudden impacts. Ensure the workpiece is stable and use appropriate personal protective equipment when working on machinery or vehicles.

Usage recommendations

Inspect the wrench before use for signs of wear or deformation; do not use a damaged tool. For high-torque applications consider using the ring end to minimize risk of rounding. Avoid using the wrench with added extensions or cheater bars unless the tool is rated for such loads. Store the wrench in a dry place and clean it after use to prolong service life.