{"product_id":"toolwiz-spark-plug-gap-tool-with-32-blade-feeler-gauge-red-precise-10-16mm-gap-reduction","title":"Toolwiz Spark Plug Gap Tool with 32-Blade Feeler Gauge, Red — Precise 10–16mm Gap Reduction","description":"\u003cp\u003e\u003cstrong\u003eToolwiz Spark Plug Gap Tool with 32-blade feeler gauge is a compact hand tool that lets you precisely reduce and set spark plug electrode gaps for most standard 10mm–16mm plugs.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you need a simple, mechanical way to seat and close spark plug electrodes before installation, this Toolwiz kit provides a red gapper and a dual-marked 32-blade feeler gauge. The tool is built to compress electrode tips predictably and works with a wide range of standard thread diameters; it’s not intended for 18mm threads, long- or short-reach specialty plugs, or to increase an existing gap. The included gauge helps you measure in both imperial and metric units so you can target the manufacturer’s spec with confidence.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the Toolwiz gapper change spark plug gaps?\u003c\/h3\u003e\n\u003cp\u003eThe Toolwiz gap tool uses a screw-actuated plunger to press the electrode toward the center and reduce the distance between the center and ground electrode. You place the plug in the cradle, slide in the chosen feeler blade, and slowly tighten the knob until the electrode compresses to the feeler’s thickness. Because the tool only compresses, it cannot widen a gap; you must start with a gap equal to or slightly larger than the target.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCradle holds 10mm–16mm standard thread spark plugs securely\u003c\/li\u003e\n  \u003cli\u003eTurn knob to incrementally compress the ground electrode\u003c\/li\u003e\n  \u003cli\u003eTool function: gap reduction only — does not enlarge gaps\u003c\/li\u003e\n  \u003cli\u003eWorks for plugs without preset gaps; iridium\/platinum often don’t need adjustment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat measurement accuracy can I expect when using the included feeler gauge?\u003c\/h3\u003e\n\u003cp\u003eThe set includes a 32-blade steel feeler gauge, dual-marked in inches (0.001\"–0.040\") and millimeters (0.03–1.0 mm), for precise selection of your target gap. The blades are hardened and polished to resist wear, which helps maintain consistent thicknesses over repeated uses. For best results, select a blade slightly smaller than your target gap to allow for electrode spring-back when you release the tool.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e32-blade range covers common spark plug specifications\u003c\/li\u003e\n  \u003cli\u003eHardened 65 manganese steel construction for durability\u003c\/li\u003e\n  \u003cli\u003eDual imperial\/metric marking simplifies cross-referencing specs\u003c\/li\u003e\n  \u003cli\u003eRecommendation: use a blade ~0.002\" smaller to compensate for spring-back\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich spark plugs are compatible with this Toolwiz kit?\u003c\/h3\u003e\n\u003cp\u003eThis gap tool is designed for most standard automotive and small-engine spark plugs with 10mm, 12mm, 14mm, or 16mm threads. It does not fit 18mm plugs or specialty long-reach and short-reach designs. Also note that many iridium or platinum plugs come pre-set and typically do not require mechanical gap adjustment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible: standard 10mm, 12mm, 14mm, 16mm thread plugs\u003c\/li\u003e\n  \u003cli\u003eNot compatible: 18mm-thread, long-reach, or short-reach specialty plugs\u003c\/li\u003e\n  \u003cli\u003eBest for: non-preset electrode plugs that accept mechanical adjustment\u003c\/li\u003e\n  \u003cli\u003eNot for enlarging an existing gap — only reduces gap distance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use the Toolwiz gapper safely and get repeatable results?\u003c\/h3\u003e\n\u003cp\u003eBegin by cleaning the plug and visually inspecting the electrode for damage. Seat the plug in the tool’s cradle, insert the measured feeler blade, and turn the knob slowly until the electrode compresses to the blade’s thickness. Release and recheck with the feeler gauge; repeat if necessary but avoid over-tightening which can deform or crack the electrode.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInspect plug and electrodes for wear before adjusting\u003c\/li\u003e\n  \u003cli\u003eUse a slightly smaller blade when allowing for electrode spring-back\u003c\/li\u003e\n  \u003cli\u003eDo not force excessive pressure to avoid damaging the electrode\u003c\/li\u003e\n  \u003cli\u003eRe-measure after releasing the tool to confirm the final gap\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Toolwiz Spark Plug Gap Tool with 32-blade feeler gauge is aimed at DIY mechanics, home maintenance enthusiasts, small engine users, and professional technicians who need an affordable, portable method to set or reduce spark plug gaps for most standard plugs. If you service cars, motorcycles, lawn mowers, or go-karts and require consistent, mechanical control when closing electrode gaps, this kit provides a simple solution. It’s not the right choice when working with 18mm or specialty reach plugs, or when you need to increase a gap rather than reduce it.\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: Can this Toolwiz tool enlarge a spark plug gap?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The Toolwiz gap tool only compresses electrodes to reduce the gap; it cannot widen an existing gap.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the included feeler gauge metric and imperial?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The 32-blade feeler gauge is dual-marked from 0.001\"–0.040\" and 0.03–1.0 mm for both units.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Toolwiz","offers":[{"title":"Default Title","offer_id":67591855603897,"sku":"B0BFJ3XNVM","price":56.69,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/toolwiz-spark-plug-gapper-front-view.jpg?v=1790559413","url":"https:\/\/redleafauto.ca\/products\/toolwiz-spark-plug-gap-tool-with-32-blade-feeler-gauge-red-precise-10-16mm-gap-reduction","provider":"Redleaf Auto","version":"1.0","type":"link"}