Open-closed combination wrench set GEKO 14–22 mm / 8–13 mm CrV (160)

Open-closed combination wrench set GEKO 14–22 mm / 8–13 mm CrV (160) contains a range of metric open-ended and boxed wrenches made from chromium-vanadium (CrV) steel. The set groups common sizes for everyday mechanical tasks, offering a compact selection that covers both smaller and medium fasteners. Designed for general workshop, automotive and maintenance use, the wrenches combine an open jaw for quick placement and a ring end for secure torque application.

Advantages

The GEKO CrV construction provides improved strength and wear resistance compared with standard carbon steel tools, while surface treatment enhances corrosion resistance for longer service life. Each wrench offers dual functionality — an open end for rapid engagement and an offset ring end for safer, higher-torque work on hex fasteners. The included size range from 8 mm up to 22 mm reduces the need to switch between multiple single wrenches during repair or assembly tasks.

Suitable for

• Automotive maintenance and repairs
• General mechanical assembly and disassembly
• Home and workshop plumbing and fastening tasks
• Routine equipment servicing and maintenance

Key specifications

• Material: chromium-vanadium (CrV) steel
• Size range: 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm
• Type: combination wrench (open end + ring end)
• Finish: corrosion-resistant surface treatment
• Usage: metric fasteners

How to use

Select the wrench size that corresponds to the nut or bolt head. Use the open end for quick placement where access is limited or when initial loosening/tightening is needed. Use the ring end to apply higher torque without rounding the fastener, ensuring the ring fully engages the hex profile. Maintain proper hand position and, where necessary, use controlled force to avoid slipping. After use, clean off debris and store the wrenches in a dry place to preserve the surface treatment.

Usage recommendations

For best results, match the wrench size precisely to the fastener to minimize rounding. Avoid using combination wrenches as hammers or prying tools. Periodically inspect for wear or damage and replace any wrench that shows significant deformation or cracking.