Socket wrench Proxxon 23 137 — 15 mm, chrome-vanadium steel, stainless finish

Proxxon 23 137 is a single 15 mm socket wrench manufactured from chrome-vanadium (CrV) steel with a polished stainless finish. Engineered for tightening and loosening bolts and nuts, this workshop-grade tool combines corrosion resistance with high torque transmission. A 72-teeth inner ring gear made of special high-alloy steel enables ratcheting with minimal swing angle, while the 15° offset ring and reverse lever design make the spanner especially suitable for work on flat surfaces and in confined spaces.

Advantages

The hardened 72-tooth mechanism permits ratcheting with swing angles as small as 5°, allowing precise incremental turning in tight areas. The chrome-vanadium shaft has a double nickel plating and a matt chrome finish for enhanced surface protection against wear and corrosion. Size identification is laser-marked on the socket for quick, reliable recognition. Torque transmission performance exceeds DIN/ISO standard requirements, providing durable and safe operation under typical workshop and automotive loads.

Suitable for

• Automotive repair and maintenance tasks involving 15 mm fasteners
• General mechanical and assembly work where a single precise 15 mm drive is required
• Workshop use on flat surfaces and tight spaces due to the 15° offset and compact ratchet action
• Applications that require corrosion-resistant hand tools with long service life

Key specifications

• Socket size: 15 mm
• Material: chrome-vanadium (CrV) steel
• Finish: double nickel-plated and matt chrome-plated stainless finish
• Ratcheting mechanism: 72-tooth inner ring gear for 5° swing
• Offset angle: 15°
• Marking: laser-etched size marking

How to use

Select the 15 mm Proxxon socket wrench and place it securely over the hexagonal head of the bolt or nut. Use the reverse lever to set the desired ratcheting direction and apply steady force to turn the fastener; the 72-tooth mechanism allows small back-and-forth movements without removing the tool. For access on flat surfaces, use the 15° offset to prevent handle interference and maintain comfortable leverage. After use, wipe the tool clean and store it in a dry place to preserve the plated surface.

Usage recommendations

Do not exceed recommended manual torque limits for small hand tools; use appropriate torque control methods when exact torque is required. Avoid exposure to harsh chemicals or prolonged moisture to protect the plated finish. Periodically inspect the ratchet mechanism for debris and apply light maintenance oil if movement becomes stiff.