Combination wrench Unior U600373 22 mm — 6-point open and box ends

Unior U600373 22 mm — 6-point open and box ends is a combination wrench designed for secure torque transfer on hexagonal nuts and bolts. The tool features a 6-point box end that engages flats for reduced rounding and a matching open end for quick access in confined positions. Hardened and precisely machined heads provide durability and a reliable fit, making this wrench suitable for workshop and field use in automotive, bicycle and general mechanical repairs.

Advantages

The 6-point box end provides positive engagement on fastener flats, lowering the risk of slipping and rounding. The open end allows rapid placement and removal where the box end cannot reach, and the hardened construction increases wear resistance for long service life. The single-piece design ensures accurate alignment between ends and consistent torque transfer during use.

Suitable for

• Automotive repair tasks involving 22 mm nuts and bolts
• Bicycle maintenance where 22 mm fasteners are present
• General mechanical and maintenance work in workshops and field settings
• Tightening and loosening hex head fasteners requiring a 6-point engagement

When it may not be suitable

This combination wrench is limited to 22 mm fasteners and will not fit other sizes; using it on inexactly sized nuts or rounded heads can reduce effectiveness. For fasteners requiring higher torque or special access angles, a torque wrench, socket set, or angled spanner may be more appropriate.

Key specifications

• Size: 22 mm
• Box end type: 6-point
• Ends: one open end and one box end
• Construction: single-piece hardened and precisely machined heads
• Typical applications: automotive, bicycle, general mechanical repairs

How to use

Select the 22 mm end that best suits the access and engagement needed. Place the 6-point box end fully onto the fastener to distribute torque on the flats and turn with steady force; use the open end where quick repositioning is required or where clearance prevents the box end from seating. Apply controlled force to avoid over-torquing and inspect fasteners and wrench contact points before use to ensure a secure fit.

What to consider before purchase

• Confirm that the fasteners you will service are 22 mm in size
• Consider whether a 6-point box end is preferred over a 12-point for your applications
• Check if hardened construction and single-piece design meet your durability expectations
• Assess if you need additional sizes or a full wrench set for varied tasks

Usage recommendations

For safe and effective use, always match the wrench size to the fastener, seat the box end fully before applying torque, and avoid using cheater bars or excessive force. Store the wrench in a dry tool roll or toolbox to maintain condition and check periodically for wear on contact surfaces.