Ring Wrench Proline 36025 — 1 pc, closed-end hand tool for tightening and loosening nuts

Proline 36025 is a single-piece closed-end ring wrench supplied as one unit. Manufactured by Proline from forged steel with a chromium-plated satin finish, this hand tool is designed to provide a secure, full-contact grip on hexagonal nuts and bolts. It meets the dimensional requirements of the German DIN 838 standard and is engineered to achieve a maximum torque that is up to 60% higher than comparable tools made to German DIN 899 and US ANSI standards, making it suitable for demanding tightening and loosening tasks in professional and home workshops.

Advantages

The forged construction and chromium plating ensure improved strength, wear resistance and corrosion protection compared with untreated steel tools. The satin finish reduces glare and helps hide surface marks from use. Conformance with DIN 838 guarantees consistent geometry for reliable engagement with fasteners, while the higher maximum torque rating extends capability when working with stubborn or high-torque joints. Supplied as a single closed-end piece, the wrench offers full socket contact around the fastener head to reduce rounding and slippage.

Suitable for

• Automotive maintenance and repair where strong, full-contact wrenches are required
• General mechanical assembly and disassembly of nut-and-bolt connections
• Domestic DIY projects involving furniture, fixtures or machinery
• Workshop tasks that demand consistent tool geometry and higher torque capacity

Key specifications

• Construction: forged single-piece closed-end design
• Finish: chromium-plated with satin surface
• Standards: dimensional conformity to German DIN 838
• Torque capability: maximum torque up to 60% higher than tools meeting DIN 899 and ANSI
• Intended use: tightening and loosening hexagonal nuts and bolts

How to use

Select the ring wrench size that matches the fastener head. Position the closed end fully over the nut or bolt head so that the wrench engages all contact faces. Apply steady force in the appropriate direction to tighten or loosen the fastener, keeping your hand clear of pinch points. For high-torque applications, apply controlled force and, if necessary, use a breaker bar or torque wrench designed for the intended torque ranges rather than excessive manual force on the hand tool alone.

Usage recommendations

Inspect the wrench before use for signs of wear or damage; avoid using a damaged tool. Store in a dry location to preserve the chromium-plated finish. Use the correct size to minimize rounding of fasteners and pair with appropriate torque-control tools when working near specified torque limits.