Open and Ring Wrench Set Proxxon PR23820, 12 Pieces, Sizes 6–19 mm

Proxxon PR23820 is a 12-piece open-end and ring combination wrench set covering metric sizes from 6 to 19 mm. The set includes commonly used sizes for general mechanical tasks, offering both an open jaw and a ring end on each wrench to address a wide range of fastener types. Designed for workshop, automotive and household use, the set gives practical coverage for tightening and loosening nuts and bolts with a single, compact kit.

Advantages

The combination design pairs an open-end for quick placement and a ring end for full-contact torque, reducing risk of slippage and rounding. Hardened chrome-plated steel construction delivers durability and corrosion resistance for long service life. A compact twelve-piece grouping covers frequently encountered metric fasteners from small to medium sizes, so users have fewer interruptions searching for the right tool. The wrenches are sized and stamped for easy identification during work.

Suitable for

• Automotive maintenance and repairs
• Bicycle adjustments and servicing
• Household repairs and assembly tasks
• Light to medium workshop mechanical work

Key specifications

• Tool type: combination (open-end and ring) wrenches
• Number of pieces: 12
• Size range: 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 17 mm, 19 mm
• Material: hardened chrome-plated steel for wear resistance and corrosion protection
• Finish: polished chrome surface for easier cleaning and rust prevention

How to use

Select the wrench size that fits the fastener snugly to minimize play. Use the open-end side for quick engagement where access is limited and the ring side when greater torque and full contact are required. Apply steady, controlled force and avoid sudden impacts to reduce risk of tool or fastener damage. Store the set in a toolbox or on a tool rail to keep sizes organized and readily accessible.

Usage recommendations

For safe and effective use, inspect wrenches for wear or deformation before applying high torque, avoid using extensions or cheater bars, and keep the tools clean and lightly oiled to maintain corrosion resistance. Use the ring end for final tightening where possible to ensure even load distribution on the fastener.