BILITOOLS M3 x 0.5 Helicoil Thread Repair Kit Metric, HSS Drill Heli Coil

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 blow molded case for easy transport and storage between jobs. Attention: Before you buy this kit, please make sure which size do you need.