Plug Thread Repair Tool Set 7pc for Spark Plug & Glow Plug

A 7-piece plug thread repair tool set for cleaning up and re-cutting damaged spark plug and glow plug threads. Used internally, it helps restore worn or dirty threads so plugs can seat properly again without moving straight to larger repair work.

Useful for vehicle servicing, garage work and home mechanic jobs where damaged plug threads are causing fitting problems. When working on cylinder heads with awkward access or deeper thread positions, the different tool lengths make the set more practical to use. It suits routine maintenance as well as problem-solving jobs where a spark plug or glow plug thread needs attention before the issue gets worse.

The set includes a spread of common thread sizes for spark plug and glow plug work, along with shorter and longer tool lengths to help with access. A centring shaft helps with alignment during use, while the conical mounting shaft is included for thread repair sleeves. For handling, the external hex drive gives another turning option when needed, and the knurled knob helps with grip during slower, more careful hand use. The eccentric function also makes the tool less fiddly to control in tighter spaces. Altogether, it is a practical setup for regular maintenance and thread clean-up work.

Plug thread repair tool set specifications

• Contents: 7-piece internal rethread tool set for spark plug and glow plug threads.
• Sizes covered: M8 x 1.0 x 115mm, M10 x 1.0 x 115mm, M12 x 1.25 x 140mm, M12 x 1.25 x 270mm, M14 x 1.25 x 140mm, M14 x 1.25 x 270mm, M18 x 1.5 x 90mm.
• Reach: Different tool lengths help when threads are seated deeper in the head.
• Alignment: Fitted with a centring shaft to help guide the tool during thread repair.
• Handling: External hex drive, knurled knob and eccentric function help with control in awkward positions.

A practical spark plug and glow plug tool set for regular maintenance and repair work.