SK O2 Sensor Socket & Thread Chaser Kit — 5-Piece 7/8" (22mm) Offset Sockets, M12/M18 Chasers, 3/8"–1/2" Drive

Compact 5-piece O2 sensor socket and thread chaser kit for safe, fast oxygen sensor removal and thread repair on most vehicles.

This SK kit combines dedicated oxygen sensor sockets, two thread chasers and a molded case so you can remove, replace and tidy sensor threads without hunting for separate tools. Built from heat-treated alloy steel with protective black phosphate finish and a long CR-V socket, the set was engineered for access in tight engine bays and to protect sensor wiring while you work.

How does this set make oxygen sensor removal easier?

The kit’s offset sockets and long slim socket reach sensors in confined or angled locations where a standard wrench won’t fit. A wide wire gate in each socket allows the sensor lead to pass through without bending or pinching, reducing the risk of wire damage during removal or installation.

• Offset 7/8" (22mm) sockets for angled access
• Wide wire slot prevents lead damage
• Long CR-V socket for deep or recessed sensors
• 3/8" and 1/2" drive compatibility with common ratchets

What thread problems do the included chasers solve?

The M12 x 1.25 and M18 x 1.5 thread chasers re-cut and clean sensor threads quickly, removing rust, carbon and minor cross-threading to restore proper engagement. They fit 3/8" drive ratchets so you can address damaged threads without adding specialty tools to your toolbox.

• Re-taps and cleans sensor mounting threads
• Eliminates rust and debris from threads
• Prevents cross-threading during installation
• Works with 3/8" drive ratchets for fast use

What materials and design features ensure longevity?

SK builds this set from heat-treated alloy steel for strength and longevity; the long socket uses chrome-vanadium (CR-V) for added wear resistance. A black phosphate coating protects against corrosion, while the slotted square drive helps reduce slippage and improves engagement with ratchets and extensions.

• Heat-treated alloy steel construction
• Long socket made from CR-V steel for durability
• Black phosphate finish for corrosion resistance
• Slotted square drive for secure tool engagement

Which vehicles and users will benefit from this set?

The tool set suits most gasoline and diesel vehicles that use threaded oxygen sensors and vacuum switches. It’s designed for automotive technicians, home mechanics and DIYers who want a focused, portable kit to speed sensor service and avoid wire or thread damage during maintenance.

• Compatible with most computer-controlled engine sensors
• Use for removal, inspection, replacement and installation
• Handy for garage professionals and backyard mechanics
• Includes a case to keep sockets and chasers organized

Who is this for: If you regularly service oxygen sensors, work on exhaust components, or perform diagnostic repairs that require sensor replacement or thread restoration, this SK 5-piece O2 sensor socket and thread chaser set delivers the right sizes, durable materials and anti-damage features in a compact case. It’s a practical addition to any mechanic’s kit when you need reliable access, clean threads and protection for sensor wiring.