FreeTec 131 Piece Helicoil Type Thread Repair Kit M5 M6 M8 M10 M12

【Comprehensive Metric Kit】The 131pcs helicoil kit includes all the essential tools you need for thread repair, from wire thread inserts (helicoils), thread taps, twist drill bits, installation, and tang breakoff tools. Thread Inserts Heli Coil Size: M5x 0.8x 6.7mm, M6x 1.0x 8.0mm, M8x 1.25x 10.8mm, M10x 1.5x 13.5mm, M12x 1.75x 16.3mm. 【High Quality & Durability】Rethreading tools of the thread repair kit are built for superior strength and longevity. Heat-treated high-speed steel (HSS) drill bits and taps ensures a high hardness (HRC 55-62) to cut through tough materials. High-strength 304 stainless steel thread inserts provide excellent durability and creating a stronger thread to withstand higher torque, especially for aluminium and other softer metals. 【Effortless Operation】The heli coil kit features 135°apex angle twist drills that reduce cutting pressure, and installation tools with rubber-coated grips for a comfortable, secure hold. The straightforward process—drill, tap, insert, and break the tang—makes thread restoration quick and hassle-free. 【Wide Applications】This versatile heli coil thread repair kit effectively restores stripped or worn threads in a diverse range of materials, including aluminum, iron, carbon steel, bronze, magnesium, composites, and polymers. Particularly ideal for automotive engine and sump repairs, plumbing, and general equipment maintenance. 【Convenient Storage】The entire helicoil thread repair kit comes in a durable, portable storage case to keep all sizes of components neatly organized and protected, ensuring ultimate portability and hassle-free efficiency on the job.