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Contains 2 metal thread adapters and 4 metal washers.

Work to replace the broken or worn-out part.

Length of 0.635''. Weighs 11.8g each.

Made of steel, more durable and harder, longer service time.

Great replacement and repair kits.

DURABLE PERFORMANCE - This thread repair kit is crafted with high-speed steel tools and 304 stainless steel inserts, ensuring long-lasting use for mechanics and DIY enthusiasts working on metal, engine, and pipe threading projects.

EASY INSTALLATION - Featuring 135° HSS drill bits and rubber-coated handle, this rethreading tool set reduces pressure and provides a secure grip, making repairs on engines, bolts, and spark plugs fast and hassle-free.

VERSATILE APPLICATION - Ideal for rethreading stripped or worn threads on materials like aluminum, carbon steel, and bronze, this helicoil repair kit covers common SAE sizes: 1/4", 5/16", 3/8", 7/16", and 1/2", perfect for mechanics and engineers.

PORTABLE SOLUTION - Keep your heli coil set tools organized and transport-ready with the sturdy carrying case, allowing mechanics and repair professionals to take this thread kit anywhere, ensuring efficiency on the job.

COMPREHENSIVE KIT - Equipped with 131 pieces, including taps, dies, inserts, and drill bits, this all-in-one thread repair tool set is perfect for metalwork, pipe repair, and engine maintenance, making it a must-have for any workshop or garage.

【Drilling】Clear the damaged threads with a standard drill. Please pay attention that for fluteless taps bigger holes are required.

【Checking】Check that the thread and pitch of the tap and the bolt match.

【Tapping】Use the special taps for cutting the holding thread into the cleared hole (recommended to use a suitable cutting oil).

【Install】Place insert on installation tool and position the adjustable ring so that the insert tang is centered in the tang slot. Wind the insert in with a light downward pressure until a half turn below the surface. Never work against the thread direction as the tang could break.

【Ideal Tool】1/4-20 Inch Thread Repair Insert Kit is ideal for restoring damaged threads, stripped internal threads and creates a stronger internal thread in soft metals.

Material and Heat Treatment: Our AKM 61 pcs Master Thread chasers are crafted from top-notch tool steel or carbon steel, renowned for their exceptional cutting prowess and durability. Heat treatment is a standard procedure to bolster hardness and wear resistance, ensuring efficient repair of thread damage.

Color Coding for Thread Types: To facilitate easy identification, rethreading tools are color-coded. Silver denotes UNC threads, black for UNF, and gold for Metric threads, aiding quick visual differentiation in various applications.

Versatile Applications: Thread chasers find extensive utility across diverse industries such as automotive repair, mechanical manufacturing, and industrial sectors. They excel in repairing damaged threads in crucial components like oil holes in car engines and threaded holes in machinery.

Cost-Effective Solution: Offering a pocket-friendly alternative, thread chasers present a cost-effective means to repair damaged threads. By restoring threads instead of replacing entire fasteners or resorting to more intricate repair methods, they save both time and expenses.

Convenience and Efficiency: Whether utilized in professional settings or for domestic repairs, thread chasers prove invaluable in restoring thread functionality, thwarting further damage, and obviating the necessity for complete fastener replacement. Their efficiency and convenience make them a preferred choice across various repair scenarios.

【Thread Repair Kit】Includes 25 x M6 thread inserts, 1 x Lug breaking tool, 1 x Installation tool, 1 x M6 tap, 1 x 5.2mm Drill bit and 1 x Wrench.

【High-quality Materials】Made of high-quality high-speed steel, which is robust. The handle is made of red plastic for a comfortable grip and does not rub hands.

【Stripped Thread Repair】Thread Size: M6 x 1.0mm. This kit can form a stronger soft metal internal thread and protect the threaded holes from wear and damage. They can also be used to create new, stronger threads in the original equipment, and snap-on insert coils produce threads that are stronger than the original metal.

【Wide Application】It can be used for daily maintenance, vehicle maintenance, drilling machine etc. use. Suitable for engine repairs and other automotive applications in steel, cast iron and aluminum.

【Easy To Use】First use the drill with the correct size (included) to damage the thread. Use the included tap to tap onto the post-drilled hole. Load the wound blade into the applicator. Screw the spool into the casting. Use a tab break tool to break the label on the blade, repair the threads and prepare use.

Used for repairing damaged or stripped internal threads and creating a stronger internal thread.

Suitable for all metals, composites, polymers and other materials. Our thread repair kit can be widely used in automotive and plumbing applications.

304 Stainless thread inserts create longer lasting durable threads, increase the possibility of higher torque application in weaker metals. 135° apex angle of twist drills, with stronger metal penetration and higher efficiency

Thread repair kit includes a collection of tools including HSS drill, tap, thread inserts, installation tool, break pin tool.

All the parts are organized in a convenient iron case for easy transport and storage between jobs.

Attention: Before you buy this kit, please make sure which size do you need. If you don't know, Please see the picture 6.

【Built to Last】 This 131pc thread repair kit features high-quality materials for exceptional durability and performance. The drill bits and screw taps are made from heat-treated high-speed steel (HSS) with a hardness of HRC 50-60, while the thread inserts are crafted from heated-treated 45# steel for superior strength and longevity.

【Comprehensive Thread Repair Kit】131-Piece metric helicoil thread repair kit includes 5 x Twist Drill Bits; 5 x Break Pin Tools; 5 x Installation Tools; 1 x Hex Key; 5 x Taps; 110 x Wire Thread Inserts.

【Easy to Use】 This thread repair kit features a user-friendly design, with 135° drill bits that minimize drilling pressure and rubber-coated tools for a comfortable grip. This makes the kit accessible and easy to use for both professionals and DIY enthusiasts.

【Versatile Applications】 Our HSS drill helicoil repair kit offers versatile applications, ideal for repairing stripped or damaged threads in a variety of materials including aluminum, iron, carbon steel, bronze, and magnesium. It's particularly suitable for automotive repair, pipeline work, and other applications where thread integrity is crucial. The kit is designed for both internal and external thread restoration and maintenance, effectively protecting threads from wear and tear.

【Portable Storage Case】 This HSS drill thread insert repair tool comes with a portable storage case, ensuring all tools are neatly organized and easily accessible. The sturdy carrying case makes it convenient to store and transport the kit between jobs, providing efficiency and ease of use on the go. The compact design allows for quick access to drill bits, installation tools, and breakoff tools, making the entire process hassle-free.

【Thread Repair Kit】Includes 25 x M5 thread inserts, 1 x Lug breaking tool, 1 x Installation tool, 1 x M5 tap, 1 x 5.2mm Drill bit and 1 x Wrench.

【High-quality Materials】Made of high-quality high-speed steel, which is strong. The handle is made of red plastic for a comfortable grip and does not rub hands.

【Stripped Thread Repair】Thread Size: M5 x 0.8mm. This kit can form a stronger soft metal internal thread and protect the threaded holes from wear and damage. They can also be used to create new, stronger threads in the original equipment, and snap-on insert coils produce threads that are stronger than the original metal.

【Wide Application】It can be used for daily maintenance, vehicle maintenance, drilling machine etc. use. Suitable for engine repairs and other automotive applications in steel, cast iron and aluminum.

【Easy To Use】First use the drill with the correct size (included) to damage the thread. Use the included tap to tap onto the post-drilled hole. Load the wound blade into the applicator. Screw the spool into the casting. Use a tab break tool to break the label on the blade, repair the threads and prepare use.

Built to Last: This helicoil thread repair kit features drill bits and taps made from premium steel, heat-treated to HRC 55-62 for superior durability. The kit includes more metal thread inserts, each crafted from high-strength 304 stainless steel, ensuring longevity and reliability for all your repair needs.

Comprehensive Metric & SAE Kit: This metric and SAE helicoil kit is the ideal solution for restoring damaged threads, perfect for engine repairs and other automotive applications. It includes 338 pieces, including twist drills, taps, thread inserts, breaking pin tools, installation tools, and a hex key. Designed to accommodate both metric and SAE sizes (M5, M6, M8, M10, M12, 1/4", 5/16", 3/8", 7/16", 1/2"), it ensures compatibility with most component specifications for daily work requirements.

Easy to Use: Designed for simplicity, this thread repair kit allows you to drill, tap, insert the coil, and break the tang to restore the thread—quickly and efficiently. Plus, the insert tool with a rubber-coated grip ensures a comfortable and reliable hold during work, which is ideal for mechanics, auto repair workers, and DIY enthusiasts.

Wide Application: This helicoil repair kit is specifically designed to fix stripped, damaged, or worn threads in a variety of materials, including aluminum, iron, carbon steel, bronze, magnesium, and more! Suitable for machining, automotive repair, and equipment maintenance.

Convenient Storage Case: The heli coil thread repair kit includes a carry case to keep all your thread repair tools neatly organized and allows you to easily transport the kit from one job to the next, ensuring a hassle-free experience.

【3Pcs Thread Files】The thread restoring file set includes 3 thread chaser files. SAE File: 9, 10, 12, 16, 20, 27, 28, 32. Metric File: 0.75mm, 1.00mm, 1.25mm, 1.50mm, 1.75mm, 2.00mm, 2.50mm, 3.00mm. SAE File: 11, 12, 13, 14, 16, 18, 20, 24

【Application】The thread repair tool can restore damaged external threads

【Plastic Caps】The plastic cap could be worn on the thread file to protect your hand from injury