Open-end wrench set Proline 34408 — 8 pieces, sizes 6–22 mm

Cold-forged, chrome-plated open-end wrenches made of chrome-vanadium steel. The Proline 34408 set includes eight sizes covering common metric dimensions and is protected against corrosion. The set complies with DIN 3110, providing standardised geometry and reliable fit for general assembly and maintenance tasks.

Advantages

Manufactured from chrome-vanadium steel and chrome-plated for durability and corrosion resistance. Cold-forged construction increases strength and wear resistance. Conforms to DIN 3110 to ensure consistent sizing and secure engagement with fasteners. Compact set of eight open-end wrenches covers a wide range of common metric sizes.

Suitable for

• Automotive repair and maintenance
• Household assembly and plumbing tasks
• Mechanical and industrial maintenance
• DIY projects requiring metric wrenches

Key specifications

• Brand: Proline
• Model / MPN: 34408
• EAN: 5903755344083
• Type: Open-end wrench set
• Material: Chrome-vanadium steel (Cr-V)
• Finish: Chrome-plated
• Standards: DIN 3110
• Set contents (mm): 6×7, 8×9, 10×11, 12×13, 14×15, 16×17, 18×19, 20×22
• Number of pieces: 8

How to use

Select the wrench size that matches the fastener and position the open jaws fully onto the nut or bolt head. Apply steady force, pulling toward the fixed jaw where possible to reduce slippage. Use each wrench only within its intended torque range; avoid using the wrench as a hammer or lever extension. After use, clean and store the wrenches in a dry place to maintain the chrome finish.

Usage recommendations

For best results, periodically inspect the wrench jaws for wear and replace any damaged tools. Use appropriate protective gloves and eye protection when working on automotive or industrial equipment.