TAILUG Thread Repair Kit, 261-Piece HSS Drill Helicoil Repair Kit SAE & Metric 1/4″ 5/16″ 3/8″ 7/16″ 1/2″ M5 M6 M8 M10 M12 with HSS Drill Threaded Inserts Screw Tap Installation and Tang Break Tool

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【WIDELY USED】: Our drill and tap set creates a stronger internal thread in soft metals and protects tapped threads against wear and damage. It is suitable for repair stripped or damaged internal threads and widely used in automotive and plumbing applications.
【SAE & METRIC】: Standard 261pcs thread repair kit, includes HSS drill bits, wire thread inserts, STI taps, installation and tang break tools. 1/4″, 5/16″, 3/8″, 7/16″, 1/2″, M5, M6, M8, M10, M12 of SAE and metric sizes get you fully equipped.
【EXCELLENT MATERIAL】: The helicoil kit is made of high-speed steel, with better hardness and toughness after heat treatment. Chrome finish surface is for anti-rust. The thread inserts made of heat-treated 45# steel has better toughness and is not easy to wear and deformation. Extended service life.
【HIGH PRECISION】: 135° apex angle of twist drills, with stronger metal penetration and higher efficiency. HSS screw taps have precise screw threads, offer large chip space and small resistance during cutting. Workmanship meets and exceeds ANSI standards.
【PORTABLE & GUARANTEE】: Everything you’ll need for thread repairing is supplied in a durable carry case, ensuring safe storage and protection when not in use. Sizes and quantities are marked on each thread insert box inside for your convenience. TAILUG helicoil thread repair kit is overed by a warranty for 1 year. Please rest assured to buy.