Open-ended/box wrench MEGA 38 mm model 35288

MEGA 38 mm open-ended/box wrench model 35288 is a hand tool designed for tightening and loosening hexagonal nuts and bolts with a 38 mm head. The combination design pairs an open jaw on one end with a closed, 12-point ring on the other, providing access in confined spaces and secure engagement for higher torque. The wrench is intended for mechanical, automotive and industrial maintenance tasks where a single 38 mm spanner is required.

Advantages

The dual-ended design allows quick repositioning: the open end gives fast access to partially obstructed fasteners while the box end offers a stronger, slip-resistant grip for applying higher torque. Constructed from hardened alloy steel with a polished finish, the tool resists wear and corrosion under normal workshop conditions. Its 38 mm size matches standard large fasteners used in heavy machinery, trucks and structural assemblies, reducing the need to switch between different tools during routine maintenance.

Suitable for

• Automotive repair and service, including truck and heavy vehicle maintenance
• Mechanical and industrial assembly or disassembly of large fastened joints
• Maintenance of agricultural equipment and construction machinery
• Workshop use where a single reliable 38 mm wrench is required for recurring tasks

Key specifications

• Functional type: combination wrench with open end and closed ring end
• Size across flats: 38 mm
• Ring end profile: 12-point for improved engagement and turning in limited space
• Material: hardened alloy steel for durability and strength
• Finish: polished or chrome-plated surface to resist corrosion and facilitate cleaning
• Length: appropriate for generating required torque on large fasteners (length varies by model)

How to use

Select the wrench when working with fasteners that require a 38 mm opening. Fit the ring end fully over the nut or bolt head for maximum contact when applying high torque; use the open end to engage fasteners in tighter positions or where quick repositioning is needed. Apply steady, controlled force to avoid sudden impacts or overstressing the fastener and the tool. When loosening a seized fastener, ensure the workpiece is supported and use appropriate penetrating lubricant and safety precautions.

Usage recommendations

Inspect the wrench before use for signs of wear, deformation or corrosion. Use the ring end for final tightening and high-torque operations, and the open end for accessibility. Avoid using cheater pipes or extensions that exceed the tool's intended leverage; if higher torque is necessary, use a torque wrench rated for the required torque. Store the wrench in a dry place and clean after use to prolong service life.