HTOMT 5‑Piece O2 Oxygen Sensor Socket & Thread Chaser Set — Cr‑V 3/8" & 1/2" Drives, Side‑Cut Crowfoots

The HTOMT 5PCS Oxygen Sensor Socket and Thread Chaser Set is a compact, vehicle-ready kit designed to remove, install and repair O2 sensors and vacuum switches without harming wiring or threads.

Whether you're a backyard mechanic or a professional technician, the HTOMT set bundles purpose-built sockets, crowfoot wrenches and thread chasers in a protective case so you can tackle stubborn oxygen sensors and damaged threads faster and with less risk of cross-threading. The tools are forged from chromium vanadium steel, treated to resist corrosion, and sized to match common O2 sensor hexes and drive tools used in most modern engines.

How does this set remove hard-to-reach oxygen sensors?

The kit includes specially shaped sockets and crowfoot wrenches with side cutouts to clear sensor wiring while allowing access in tight locations. Deep and low-profile options accommodate sensors recessed into manifolds or sitting close to other engine components.

• 3/8" drive extra-deep broach socket for recessed sensors
• 3/8" low-profile crowfoot for limited clearance areas
• 1/2" offset crowfoot for higher torque needs
• Side-cut design protects sensor wiring during removal

What sizes and components are included in the HTOMT kit?

This five-piece set comes organized in a molded ABS carry case and includes sockets, crowfoot wrenches and two thread chasers to restore damaged O2 sensor threads. Drive-end compatibility makes the sockets usable with common ratchets, torque wrenches and breaker bars.

• One 3/8" drive extra-deep broach socket (3-1/8" long)
• One 3/8" drive low-profile crowfoot socket (1-1/4" long)
• One 1/2" drive offset crowfoot socket (1-15/16" long)
• M18 x 1.5mm and M12 x 1.25mm thread chasers with 3/8" drive

Will these tools stand up to repeated shop use?

HTOMT forges the sockets and wrenches from chromium vanadium steel and applies phosphating and electroplating finishes to slow oxidation and wear. The construction balances durability with precise fit to avoid rounding sensor hexes and to extend service life in professional or home environments.

• Durable Cr-V steel construction for strength and impact resistance
• Protective surface treatments to reduce rust and corrosion
• 6-point 7/8" (22mm) opening for secure grip on sensor hexes
• Compatibility with standard drive tools for reliable leverage

How do the thread chasers help during installation?

The included M18 and M12 thread chasers clean and repair sensor mounting threads so new sensors seat correctly and torque readings are accurate. Using a chaser before installation reduces the chance of cross-threading and helps ensure a gas-tight, safe fit.

• Restores damaged or corroded O2 sensor threads
• 3/8" drive fit lets you use ratchet or handle for controlled cleaning
• Improves sensor seating and torque accuracy during install

Who is this for? If you remove, replace or service oxygen sensors and vacuum switches—whether you work in a home garage, mobile repair business or professional shop—this HTOMT five-piece set simplifies access, protects sensor wiring and helps repair thread damage. The compact ABS case keeps tools organized for transport, and the selection of deep, low-profile and offset sockets covers most common sensor locations and drive-tool preferences.