Combination Wrench Set Unior 38 mm, ring-open end, model 605838

Combination Wrench Unior 38 mm, model 605838, combines a closed ring end and an open jaw end in a single hand tool intended for turning nuts and bolts with a 38 mm profile. The tool is produced by Unior and is designed for mechanical repair, automotive maintenance and industrial tasks where both torque application and access in tighter spaces are required. Its dual-end design enables versatile use on fasteners with limited clearance as well as on exposed bolt heads.

Advantages

The combination design provides the precision and grip of a ring end together with the speed and access of an open-end jaw without changing tools. Manufactured to industry work standards, the wrench delivers consistent torque transfer and reduced rounding of fasteners. Its single-piece construction improves durability and resists deformation under typical workshop loads. The 38 mm working size addresses larger fasteners commonly found in heavy vehicles, machinery and structural assemblies.

Suitable for

• Automotive repair and maintenance on trucks and larger vehicles
• Industrial equipment assembly and maintenance
• Mechanical workshops and service garages
• Field service and mobile repair units handling large fasteners

Key specifications

• Type: combination wrench (ring end + open end)
• Working size: 38 mm
• Material: forged steel construction for strength and wear resistance
• Finish: protective surface treatment to resist corrosion and wear
• Design: single-piece body to ensure rigidity and accurate torque delivery

How to use

Select the 38 mm combination wrench when the fastener matches the 38 mm profile. Engage the ring end for greater grip and torque on fully accessible bolt heads or nuts, and use the open end where side access is required or where the ring cannot be positioned. Apply steady pressure, avoid sudden impacts with the wrench to reduce the risk of tool or fastener damage, and ensure correct seating on the fastener before applying full torque.

Usage recommendations

For safe and effective operation, inspect the wrench for deformation or excessive wear before use, keep it clean and free of oil on gripping surfaces, and use with appropriate hand force only—do not use as a hammer or extend the handle with a cheater bar. Store in a dry place to maintain the protective finish and check compatibility with fastener materials to avoid galling or damage.