BILITOOLS B1R95314 7-Piece Magnetic Swivel Spark Plug Socket Set, 3/8-Inch Drive

When spark plugs sit deep in an engine bay or are difficult to reach straight on, a swivel socket set can make the service setup more practical. The BILITOOLS B1R95314 combines magnetic spark plug sockets with a 360-degree swivel, four socket sizes, and a gap tool, so you can select the size for the job and check plug gaps with tools from the same set.

A storage case keeps the tools organized between jobs, while engraved size markings make it easier to identify the socket you need.

Technical overview

• Drive: 3/8 inch
• Socket sizes: 9/16 inch, 5/8 inch, 14 mm, and 16 mm
• Socket profiles: 6-point and 12-point
• Socket design: Magnetic, 360-degree swivel
• Gap tool: SAE and metric measurements
• Material: Chrome vanadium steel with a corrosion-resistant mirror chrome finish
• Storage: Case

The magnetic cores are designed to hold a spark plug in the socket during removal or installation. That can be useful when working in a confined area where handling the plug directly is awkward. The swivel head adds positioning flexibility, while the choice of 6-point and 12-point profiles gives you options for engaging the plug. For buyers choosing between a socket-only setup and a kit that also supports gap checking, this set brings both tasks together.

What it works with

The set is intended for spark plug service using one of its listed socket sizes: 9/16 inch, 5/8 inch, 14 mm, or 16 mm. Match the socket size to the spark plug before starting work. The 3/8-inch drive connects the sockets to a compatible drive tool, and the included gap tool is designed to measure and adjust spark plug gaps.

The gap tool provides SAE settings of 0.25, 0.3, 0.35, 0.4, 0.44, 0.45, 0.5, 0.55, and 0.6 inches, plus metric settings of 0.64, 0.76, 0.89, 1.02, 1.12, 1.14, 1.27, 1.4, and 1.52 mm. Choose the measurement that matches the spark plug service specification for your application.

Getting the most from it

Before beginning, identify the plug size and gap specification required for the service, then select the corresponding socket and gap-tool setting. The swivel design helps position the socket when access is angled, and the magnetic interior is intended to keep the plug seated as you handle it. After use, return each tool to the case, the engraved markings help with quick identification next time.

Buyers often highlight the swivel’s usefulness around hard-to-reach plugs and the set’s functionality. Feedback on magnet strength and durability is mixed, so experiences vary. The product’s magnetic hold and swivel design are intended to support access and plug handling during service, while the case keeps the tools together for storage or transport.

What to clarify

Which spark plug sizes are covered? The sockets are listed for 9/16-inch, 5/8-inch, 14 mm, and 16 mm plugs. Confirm the required size for the plug being serviced before selecting a socket.

What drive does the set use? The sockets have a 3/8-inch drive. Pair them with a compatible drive tool for the work.

Can the included tool check both SAE and metric gaps? Yes. It has listed measurements in both standards, with SAE settings from 0.25 to 0.6 inches and metric settings from 0.64 to 1.52 mm, including the individual increments noted above.

Buying verdict

For spark plug maintenance that calls for a choice of common socket sizes, access at an angle, and a tool for checking or adjusting gaps, the BILITOOLS set offers a focused combination in one organized case. Its magnetic swivel sockets are especially relevant for jobs where a straight approach is awkward, while the gap tool supports the measurement step before installation.