--- product_id: 476007501 title: "DAYUAN Thread Repair Kit M9x1.25mm Helicoil Restoring Thread Repair Tools Wire Insert Kit Compatible Hand Tool Set for Auto Repairing" brand: "dayuan" price: "127.99 DT" currency: TND in_stock: true reviews_count: 8 category: "Dayuan" url: https://www.desertcart.tn/products/476007501-dayuan-thread-repair-kit-m9x1-25mm-helicoil-restoring-thread-repair store_origin: TN region: Tunisia --- # 20 stainless steel wire inserts included M9x1.25mm precision thread size High-speed steel drill bit & tap for durability DAYUAN Thread Repair Kit M9x1.25mm Helicoil Restoring Thread Repair Tools Wire Insert Kit Compatible Hand Tool Set for Auto Repairing **Brand:** dayuan **Price:** 127.99 DT **Availability:** ✅ In Stock ## Summary > 🔧 Fix it right, fix it tight — don’t let stripped threads slow you down! ## Quick Answers - **What is this?** DAYUAN Thread Repair Kit M9x1.25mm Helicoil Restoring Thread Repair Tools Wire Insert Kit Compatible Hand Tool Set for Auto Repairing by dayuan - **How much does it cost?** 127.99 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/476007501-dayuan-thread-repair-kit-m9x1-25mm-helicoil-restoring-thread-repair) ## Best For - dayuan enthusiasts ## Why This Product - Trusted dayuan brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Complete Repair Kit in One Set:** Includes 20 premium stainless steel inserts, drill bit, tap, installation & lug breaking tools for seamless thread restoration. - • **Built to Last with High-Speed Steel:** Durable HSS drill bit and tap ensure long-lasting performance on steel, cast iron, and aluminum surfaces. - • **Precision Engineered for M9 Threads:** Restore stripped or damaged threads with exact M9 x 1.25mm sizing for flawless fit every time. - • **Versatile Automotive & Industrial Use:** Ideal for engine repairs, car maintenance, and daily workshop tasks—join the pros who trust DAYUAN for reliable fixes. - • **Effortless Thread Restoration Workflow:** Step-by-step tools designed for smooth drilling, tapping, inserting, and finishing—get your engine or auto threads like new. ## Overview The DAYUAN Thread Repair Kit M9x1.25mm is a professional-grade toolset designed to restore damaged internal screw threads with precision. Featuring 20 stainless steel wire inserts, high-speed steel drill bit and tap, and specialized installation tools, it delivers durable, reliable repairs on steel, cast iron, and aluminum. Perfect for automotive engine repairs and general workshop use, this kit ensures a smooth, efficient thread restoration process every time. ## Description FeaturesDesigned for restoring damaged threadsComes with 20pcs wire thread insertsHigh quality material, sturdy and durableSuitable for steel, cast iron and aluminumIdeal for engine repair, car repair, etcSpecificationThread size: M9 x 1.25mm Thread inserts material: Stainless steelThread tap material: HSSDrill bit material: HSSWrench material: electrophoresis surfaceHow to use: 1.Drill out damaged thread using correctly sized drill bit(supplied)2.Tap re-drilled hole using tap supplied3.Load coiled insert into applicator4.Screw coil into casting5.Using lug breaking tool,break off tag on insert6.Thread is repaired and ready to use.Package Includes: 20 x Thread inserts1 x Lug breaking tool1 x Installation tool1 x Tap1 x Twist Drill bit1 x Hex Key Review: Does the Job - Seems decent. Firstly, this is identical to the more expensive version, “wolf boy” or something similar, also available on desertcart but for double the price. The kits are identical even down to the instructions. Save your money. I bought this to repair the caliper slide pin threads on a hub from a VAG group car, is this might apply to anyone with a VW/Audi or Skoda. The threads had stripped out the hub. The kit was good to use. The drill bit was sharp and the right size. The tap was the right size and seemed to get through the hub fine. The only complaint is there’s no tap wrench so I had to invent something from a socket set. But it worked. Helicoil went in and tab snapped nicely. Just waiting on a new bolt and hopefully all will be well! First time in my mechanic-ing experience I’ve had to use one and would highly recommend a set in anyone’s garage for a “Just in case.” This set is specific for M9 as most sets don’t have M9 in them. Review: Got me out of a situation... - Great bit of kit for the price.. Used to tap and repaire a 5mm thread on a vintage motorcyle oil injection cover. I have never needed to Helicoil prior to using this kit and was very aprehensive abour drilling into the engine case, however with correct preporation the job was sorted and over in minutes offering an excellent repaire. I had no problem with the size of drill supplied in the kit as some reviewers have mentioned, the inserts fitted perfectly and the results were brilliant! I would suggest buying a tap handle or tool (as I did) undless you alreadt own one as this is not included in the set. Worth every penny! ## Features - Made of high speed steel and plastic handle, sturdy and durable in use. - This highly useful thread repair kit is for M9 to repair or replace damaged or stripped internal screw threads. - Ideal for Restoring Damaged Threads, Suitable for Engine Repair and Other Automotive Applications - The thread repair kit including thread inserts, drill bit, thread tap, insert installation, lug breaking tool, allow you have smooth repairing experience. - Applications for steel, cast iron and aluminum, can be used in daily repair, car repair, drilling machine, etc. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Yinyuan Tools | | Brand | DAYUAN | | Package Dimensions | 20.3 x 11.2 x 4.2 cm; 330 g | | Item model number | YT-1059 | | Manufacturer part number | YT-1059 | | Item Weight | 330 g | ## Images ![DAYUAN Thread Repair Kit M9x1.25mm Helicoil Restoring Thread Repair Tools Wire Insert Kit Compatible Hand Tool Set for Auto Repairing - Image 1](https://m.media-amazon.com/images/I/61xyNnuQDdL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Does the Job *by R***B on 5 September 2025* Seems decent. Firstly, this is identical to the more expensive version, “wolf boy” or something similar, also available on Amazon but for double the price. The kits are identical even down to the instructions. Save your money. I bought this to repair the caliper slide pin threads on a hub from a VAG group car, is this might apply to anyone with a VW/Audi or Skoda. The threads had stripped out the hub. The kit was good to use. The drill bit was sharp and the right size. The tap was the right size and seemed to get through the hub fine. The only complaint is there’s no tap wrench so I had to invent something from a socket set. But it worked. Helicoil went in and tab snapped nicely. Just waiting on a new bolt and hopefully all will be well! First time in my mechanic-ing experience I’ve had to use one and would highly recommend a set in anyone’s garage for a “Just in case.” This set is specific for M9 as most sets don’t have M9 in them. ### ⭐⭐⭐⭐⭐ Got me out of a situation... *by N***0 on 30 January 2026* Great bit of kit for the price.. Used to tap and repaire a 5mm thread on a vintage motorcyle oil injection cover. I have never needed to Helicoil prior to using this kit and was very aprehensive abour drilling into the engine case, however with correct preporation the job was sorted and over in minutes offering an excellent repaire. I had no problem with the size of drill supplied in the kit as some reviewers have mentioned, the inserts fitted perfectly and the results were brilliant! I would suggest buying a tap handle or tool (as I did) undless you alreadt own one as this is not included in the set. Worth every penny! ### ⭐⭐⭐⭐⭐ Direct fit, *by C***E on 24 March 2026* Exactly as described, helicoil kit, ## Frequently Bought Together - DAYUAN Thread Repair Kit M9x1.25mm Helicoil Restoring Thread Repair Tools Wire Insert Kit Compatible Hand Tool Set for Auto Repairing - Qnkaa 151pcs Thread Repair Kit Helicoil Insert Sleeves Metric M5 M6 M8 M10 M12 Stainless Steel Tap Drill --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/476007501-dayuan-thread-repair-kit-m9x1-25mm-helicoil-restoring-thread-repair](https://www.desertcart.tn/products/476007501-dayuan-thread-repair-kit-m9x1-25mm-helicoil-restoring-thread-repair) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-10-16*