Spanner wrench Proline 36938, 204 mm length, single-piece open-end tool

Proline spanner wrench 36938 is a single-piece open-end hand tool with a total length of 204 mm, intended for tightening and loosening fasteners in mechanical and maintenance work. Manufactured from chromium-molybdenum steel and phosphate-finished, the wrench combines material strength with surface protection to resist wear. The tool features a reinforced slogging head that allows measured impact when extra force is needed, while its medium length provides access in confined spaces and conventional workshop settings.

Advantages

The forged construction ensures consistent mechanical properties and durability under repeated use. Phosphating on the surface increases corrosion resistance and reduces glare. The reinforced slogging head is designed to withstand occasional striking without compromising the open-end profile. The single-piece design eliminates joints or moving parts, improving reliability and service life.

Suitable for

• General mechanical repairs and assembly work
• Light to medium maintenance tasks in workshops and garages
• Accessing fasteners in confined or partially obstructed spaces
• Situations requiring a durable wrench that can tolerate occasional striking

Key specifications

• Total length: 204 mm
• Tool type: single-piece open-end spanner wrench
• Material: chromium-molybdenum steel
• Finish: phosphated surface treatment
• Feature: reinforced slogging head for impact resistance

How to use

Select the correct jaw size for the fastener and position the open end over the flats of the nut or bolt. Apply steady force while keeping the wrench aligned with the fastener axis to minimize slipping. For stubborn fasteners, use controlled strikes to the slogging head with a hammer designed for tool impact; avoid excessive blows that could deform the fastener or tool. After use, clean off dirt and residues and store the wrench in a dry toolbox or on a rack to preserve the phosphated finish.

Usage recommendations

Do not use the open-end wrench on rounded or damaged fasteners; consider replacing with a different tool if the fastener condition is poor. Avoid using excessive leverage by adding extensions to the handle, as this can overload the wrench. Periodically inspect the open jaws and slogging head for deformation or cracks, and retire the tool if any significant damage is found.