WORKPRO Oxygen Sensor Socket Set 7Pc — 3/8" & 1/2" Drive Kit with Wire Gate & Thread Chasers

This oil pressure, thermal and oxygen sensor socket collection pairs offset and straight sockets with two thread chasers to speed up sensor service jobs. Each piece is forged from alloy steel, heat treated and phosphated for corrosion resistance and long life. The set is sized to match common sensor hexes and includes open wire gates and slotted square holes to accommodate ratchets and sensor leads during removal and installation.

What sockets are included and why do they matter?

The kit contains seven tools: offset oxygen sensor sockets in both 1/2" and 3/8" drive sizes, a 3/8" oxygen sensor socket with an integrated wire gate, 3/8" sockets for thermal switches and oil pressure sensors, plus two metric thread chasers. Together these cover the most frequent sensor sizes you’ll encounter on cars and light trucks, reducing tool changes and protecting delicate sensor wiring.

• 1 × 1/2" drive × 22mm (7/8") offset oxygen sensor socket
• 1 × 3/8" drive × 22mm (7/8") offset oxygen sensor socket
• 1 × 3/8" drive × 22mm oxygen sensor socket with wire gate
• 1 × 3/8" drive × 27mm (1-1/16") thermal sensor switch socket
• 1 × 3/8" drive × 27mm oil pressure sensor socket
• 1 × M12 x 1.25mm thread chaser (3/8" drive compatible)
• 1 × M18 x 1.5mm thread chaser (3/8" drive compatible)

How does the design protect sensor wires and ratchets?

WORKPRO engineered the oxygen sockets with a wide wire gate so sensor leads can pass through the socket without kinking or pinching. The sockets also have a slotted square drive area to reduce slipping and to securely lock onto your ratchet or extension during high-torque removal.

• Wide wire gate preserves sensor wiring during removal
• Slotted square hole improves anti-slip engagement with ratchets
• Offset sockets provide clearance for tight exhaust and manifold locations

Are the thread chasers necessary and how do they work?

The included M12 and M18 thread chasers are invaluable when sensor threads are dirty, corroded or mildly damaged. They clean and realign threads in the housing, helping prevent cross-threading and making reinstallations smoother and more reliable.

• M12 x 1.25mm and M18 x 1.5mm sizes fit common sensor housings
• Compatible with a 3/8" ratchet for controlled thread correction
• Reduce risk of thread damage and speed up reassembly

What materials and treatments ensure long service life?

Each component is made from high-grade alloy steel, then heat-treated to improve strength and wear resistance. A phosphated surface finish adds corrosion protection and reduces galling, so sockets remain reliable under repeated use in automotive environments.

• Alloy steel construction for torque and toughness
• Heat treatment for hardness and fatigue resistance
• Phosphate coating for rust prevention and smoother operation

Who is this for: This WORKPRO 7-piece set is suited to DIY mechanics, mobile technicians and professional shops that service exhaust, emission, oil pressure and thermal sensors. It’s particularly helpful when working in confined engine bays or on older vehicles with corroded sensor threads—anyone who needs safe, repeatable sensor removal and clean, reliable reinstallation will benefit from this kit.