Flat-ring wrenches Dedra 1705K set, CrV steel, 12 pcs, sizes 6–22 mm

Set of 12 flat-ring (combination) wrenches Dedra 1705K made from chrome-vanadium (CrV) steel, covering metric sizes 6–22 mm. Each tool combines a flat open-end and a ring end to allow access in confined spaces and provide a secure grip on fasteners. The set is intended for general mechanical, household and assembly work where a compact range of common metric sizes is needed.

Advantages

The wrenches are produced from chrome-vanadium (CrV) steel for improved strength and wear resistance. The combination of an open flat end and a closed ring end gives flexibility for different fastening situations: the open end is suitable for quick adjustments and access to nuts in tight spots, while the ring end provides a more reliable grip on hex fasteners to reduce rounding. Twelve sizes in one set ensure you have the most frequently used metric dimensions together in a compact organiser.

Suitable for

• Automotive maintenance and repairs
• Home and garden equipment servicing
• Furniture assembly and disassembly
• General workshop and mechanical tasks
• Plumbing fixtures and light engineering jobs

Key specifications

• Material: chrome-vanadium (CrV) steel
• Finish: corrosion-resistant surface treatment
• Set composition: 12 combination wrenches
• Metric sizes included: 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 17 mm, 22 mm
• Open-end and ring-end configuration on each wrench
• Compact storage format for organised transport and storage

How to use

Select the wrench matching the fastener size; place the ring end fully over the hexagonal head when maximum torque and minimum slippage are required, or use the open end for quick positioning or when access is restricted. Apply force steadily along the handle axis, avoid sudden impacts, and ensure the wrench is correctly seated on the fastener before turning. After use, clean off debris or grease and return wrenches to their storage organiser to keep sizes arranged and protect the tools.

Usage recommendations

For safe and effective use, do not use combination wrenches as hammering tools or pry bars. Use the correct metric size to avoid rounding of fasteners; for stubborn or seized bolts consider applying penetrating lubricant and allow it to act before attempting to loosen. Store the set in a dry place to minimise corrosion and periodically inspect for wear or damage before critical tasks.