BILITOOLS Helicoil Thread Repair Kit SAE, 131-Piece HSS Drill Heli Coil Repair Kits 1/4" 5/16" 3/8" 7/16" 1/2"

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More features

• Size: 5pcs HSS drill bits, 5pcs HSS taps, 5pcs break pin tool; Includes 25 Each thread inserts: 1/4''-20, 5/16''-18, 3/8''-16, 7/16''-14; 10 Each thread inserts: 1/2''-13.
• 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
• All the parts are organized in a convenient iron case for easy transport and storage between jobs.