{"product_id":"horusdy-thread-repair-kit-348-piece-helicoil-set-metric-sae-with-hss-drills-taps-carry-case-for-engine-spark-plug-repai","title":"HORUSDY Thread Repair Kit — 348-Piece Helicoil Set (Metric \u0026 SAE) with HSS Drills, Taps \u0026 Carry Case for Engine \u0026 Spark Plug Repai","description":"\u003cp\u003e\u003cstrong\u003eThe HORUSDY 348-piece thread repair kit is a complete Helicoil-style solution that restores stripped or damaged internal threads in both metric and SAE components.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you work on engines, machinery, or automotive parts you know how quickly a stripped spark plug hole or seized thread can stop a job. This all-in-one kit gathers HSS drill bits, heat-treated alloy taps, wire thread inserts, installation and break-off tools plus a wide range of inserts so you can repair threads on the spot without replacing housings or cylinder heads. Everything fits into a custom-molded carry case for organized, portable use.\u003c\/p\u003e\n\n\u003ch3\u003eWhat sizes and thread standards are included?\u003c\/h3\u003e\n\u003cp\u003eThe set covers the most commonly needed internal thread sizes across metric and SAE standards, so you can tackle repairs on a broad variety of parts. Inserts and corresponding tools are matched for reliable fit and thread engagement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMetric: M5, M6, M8, M10, M12\u003c\/li\u003e\n  \u003cli\u003eSAE: 1\/4\", 5\/16\", 3\/8\", 7\/16\", 1\/2\"\u003c\/li\u003e\n  \u003cli\u003eComplete matching taps, HSS pilot drills and wire inserts for each size\u003c\/li\u003e\n  \u003cli\u003eIncludes driver\/installation and break-off tools for wire tang removal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do the included tools restore damaged threads effectively?\u003c\/h3\u003e\n\u003cp\u003eRestoring a damaged thread is a three-step process: drill to the correct repair size, cut the new helicoil thread with the tap, then install the wire insert. This kit supplies precision HSS drills for clean holes, hardened taps for accurate thread form, and engineered inserts that recreate strong internal threads.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e135° split-point HSS drill bits to reduce walking and produce clean holes\u003c\/li\u003e\n  \u003cli\u003eHeat-treated alloy taps for durable, consistent thread cutting\u003c\/li\u003e\n  \u003cli\u003eThread inserts provide a hardened internal surface for new bolts\u003c\/li\u003e\n  \u003cli\u003eInstallation and break-off tools ensure correct insert seating and tang removal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this kit work on engine and spark plug threads?\u003c\/h3\u003e\n\u003cp\u003eYes — the size mix and robust tool materials make this kit suitable for many engine repairs, including spark plug threads and other cylinder head applications. Use the correct drill and tap sizes from the set, follow the install procedure, and verify torque specs when reinstalling fasteners.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSizes cover common spark plug and engine-thread dimensions\u003c\/li\u003e\n  \u003cli\u003eHSS and heat-treated components withstand workshop use\u003c\/li\u003e\n  \u003cli\u003eOrganized case keeps correct tools paired with inserts for each size\u003c\/li\u003e\n  \u003cli\u003eWorks on aluminum, iron and many other metals when used properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow is the kit organized and what adds to its usability?\u003c\/h3\u003e\n\u003cp\u003eThe entire 348-piece assortment is stored in a custom-molded carry case so you can quickly find drills, taps and matching inserts. Color-coded or labeled compartments reduce setup time, and the compact footprint makes it easy to bring the kit to a shop bay or field service location.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCustom-molded case holds each tool and insert securely\u003c\/li\u003e\n  \u003cli\u003eQuick visual identification of sizes and components\u003c\/li\u003e\n  \u003cli\u003ePortable for onsite repairs or mobile mechanics\u003c\/li\u003e\n  \u003cli\u003eDurable storage protects tools between jobs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: the HORUSDY 348-piece thread repair kit is aimed at professional mechanics, automotive technicians, machine shops and serious DIYers who need a dependable, portable set for restoring stripped or damaged internal threads. If you routinely work on engines, machinery or assemblies with common metric and SAE threads and want to avoid part replacement, this kit provides the matched drills, taps, inserts and tools to get repairs done cleanly and quickly.\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: Does this kit include both metric and SAE sizes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The set includes M5–M12 metric and 1\/4\"–1\/2\" SAE sizes with matching drills, taps, inserts and tools.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use these tools on aluminum engine heads?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Use the correct drill and tap from the kit and follow standard thread repair steps for aluminum.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HORUSDY","offers":[{"title":"Default Title","offer_id":48083914457246,"sku":"B0FJ5YV51Q","price":94.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/horusdy-full-kit-open-case.jpg?v=1785839918","url":"https:\/\/northtrailauto.ca\/products\/horusdy-thread-repair-kit-348-piece-helicoil-set-metric-sae-with-hss-drills-taps-carry-case-for-engine-spark-plug-repai","provider":"North Trail Auto","version":"1.0","type":"link"}