Flat-ring wrench 38 mm NEO Tools 09-738

Flat-ring wrench 38 mm NEO Tools 09-738 is a single-piece hand tool that combines an open flat end with a closed ring end sized for 38 mm hexagonal nuts and bolts. The tool is intended for turning, tightening and loosening fasteners of the matching size in automotive repair, mechanical maintenance and general workshop environments. The design provides access in confined spaces with the open end while the ring end offers full contact on the fastener for reduced slippage.

Advantages

The wrench provides two working profiles in one compact tool, enabling both quick positioning with the open end and secure torque transfer with the ring end. Constructed as a single-piece body, it offers consistent alignment between ends and reduced risk of joint play. The ring end fully encloses the fastener head for even load distribution, while the flat open end allows work where clearance is limited. The 38 mm size matches common large fasteners found in automotive and industrial applications.

Suitable for

• Automotive wheel and suspension fasteners that use 38 mm hex heads
• Heavy machinery and agricultural equipment maintenance
• Workshop assembly and disassembly tasks requiring a 38 mm wrench
• Situations where both open-end access and ring-end torque are needed

Key specifications

• Wrench type: combination of flat open end and closed ring end
• Nominal size: 38 mm across flats
• Construction: single-piece hand tool
• Intended fastener shape: hexagonal nuts and bolt heads
• Primary applications: automotive, mechanical maintenance, workshop use

How to use

Select the flat-ring wrench by confirming the 38 mm size matches the nut or bolt. Place the open flat end onto the fastener when access requires a thinner profile or when sliding the wrench into place from the side. Use the closed ring end when full contact around the fastener is possible to reduce rounding and allow higher torque. Apply steady force and avoid sudden impacts; do not use the wrench with an extension or cheater bar unless the tool specification explicitly allows it. Inspect the contact surfaces before use to ensure secure engagement.

Usage recommendations

Use the ring end for final tightening or loosening to minimize fastener damage, and reserve the open end for alignment and situations with limited clearance. Keep the wrench clean and store it dry to prevent corrosion; inspect regularly for wear or deformation and replace if the seating surfaces are compromised.