{"product_id":"gearoll-spark-plug-gap-tool-blue-knob-gapper-with-32-blade-steel-feeler-gauge-for-10-12-14-16mm-plugs-precise-adjustment","title":"GEAROLL Spark Plug Gap Tool — Blue knob gapper with 32-blade steel feeler gauge for 10\/12\/14\/16mm plugs, precise adjustment","description":"\u003cp\u003e\u003cstrong\u003eGEAROLL Spark Plug Gap Tool is a compact, hand-operated gapping and measuring kit that lets you set accurate spark plug electrode distances for most 10mm, 12mm, 14mm and 16mm threaded plugs.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhether you tune a motorcycle, car, lawnmower or small engine, correct spark plug gap is essential for reliable ignition. This GEAROLL kit pairs a precision 32-blade steel feeler gauge with an easy-turn gapping tool and gloves, so you can quickly measure and adjust non‑preset gap plugs without expensive shop visits. The lightweight, blue-finished tool is made for repeatable adjustments and portable use.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the GEAROLL tool help make gapping faster?\u003c\/h3\u003e\n\u003cp\u003eThe tool clamps the spark plug and expands the side electrode by turning a knob, which lets you widen the gap in controlled increments. Using the included feeler blades you verify the gap size as you go, avoiding guesswork and repeated re-installation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKnob-driven mechanism for smooth, gradual adjustment\u003c\/li\u003e\n  \u003cli\u003e32 precision blades ranging 0.001–0.040 inch (0.03–1.0 mm)\u003c\/li\u003e\n  \u003cli\u003eIncluded gloves protect hands and keep parts clean\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it fit my spark plugs and what are its limits?\u003c\/h3\u003e\n\u003cp\u003eGEAROLL’s gapping tool accepts most standard threaded spark plugs in 10mm, 12mm, 14mm and 16mm sizes, and works with many non‑preset gap plugs. It is not compatible with 18mm thread plugs or specialty long‑reach and short‑reach designs, so check your plug’s thread size before purchase.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible: 10mm, 12mm, 14mm, 16mm thread plugs\u003c\/li\u003e\n  \u003cli\u003eNot compatible: 18mm threads, long‑reach or short‑reach special plugs\u003c\/li\u003e\n  \u003cli\u003eBest for non‑preset gap plugs where manual adjustment is required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow accurate is the feeler gauge and how do I avoid damaging plugs?\u003c\/h3\u003e\n\u003cp\u003eThe blade set is made of hardened 65 manganese steel, polished for precise thicknesses from 0.001\" to 0.040\" (0.03–1.0 mm). To prevent electrode coating wear, the kit’s instructions recommend turning the knob gently and rotating slightly back before re‑measuring, rather than forcing the screw into the electrode.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e32 hardened, flexible blades for precise gap verification\u003c\/li\u003e\n  \u003cli\u003eMeasure first, then adjust; avoid over‑tightening the clamp\u003c\/li\u003e\n  \u003cli\u003eWithdraw slightly after adjustment to avoid coating abrasion\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the kit and how do I use it step‑by‑step?\u003c\/h3\u003e\n\u003cp\u003eThe compact kit ships with the GEAROLL gapper, the 32‑blade feeler gauge and a pair of gloves — ready for immediate use. Basic steps are: select the blade matching desired gap, seat the plug in the tool, turn the knob to open the electrode to the gauge, and back off slightly before final measurement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eKit contents: gap tool, 32‑blade feeler gauge, protective gloves\u003c\/li\u003e\n  \u003cli\u003eStepwise: measure → clamp → adjust slowly → re‑measure\u003c\/li\u003e\n  \u003cli\u003eRepeat until blade slides with light resistance for correct gap\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The GEAROLL Spark Plug Gap Tool is made for DIY mechanics, motorcycle and small‑engine owners, and fleet technicians who need an affordable, portable way to measure and set spark plug gaps accurately. It’s ideal if you service multiple engine types with standard thread plugs and want a durable feeler set and a controlled adjustment mechanism without specialist equipment.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which spark plug thread sizes does this tool fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It fits most 10mm, 12mm, 14mm and 16mm threaded spark plugs but not 18mm, long‑reach, or short‑reach specialty plugs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What gap range can the feeler gauge measure?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The supplied 32‑blade feeler gauge measures from 0.001\" to 0.040\" (0.03–1.0 mm) for precise gap checks.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GEAROLL","offers":[{"title":"Default Title","offer_id":67592071020729,"sku":"B0FWBVKJJP","price":56.69,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/gearoll-front-view-blue-gapping-tool.jpg?v=1790561521","url":"https:\/\/redleafauto.ca\/products\/gearoll-spark-plug-gap-tool-blue-knob-gapper-with-32-blade-steel-feeler-gauge-for-10-12-14-16mm-plugs-precise-adjustment","provider":"Redleaf Auto","version":"1.0","type":"link"}