BILITOOLS 131-Piece Power-Drilled Helicoil Thread Repair Kit Metric Heli Coil M5 M6 M8 M10 M12, Quick-Change Adapter Enables Fast Swaps For 4241 HSS Drill &Tap, Install Tool & Break Pin

Quick-Change Efficiency: The 60 mm Quick-Change Adapter lets you rapidly switch among the HSS Twist Drill, HSS Screw Tap, Installation Tool and Break Pin Tool, reducing tool-change time during repetitive thread repair 131-Piece Metric Set: Includes one Quick-Change Adapter; five each of HSS Twist Drill, HSS Screw Tap, Installation Tool and Break Pin Tool; plus 110 304 Stainless Thread Inserts in M5x0.8, M6x1.0, M8x1.25, M10x1.5 and M12x1.75 Repair Damaged Threads: Designed for repairing stripped or damaged internal threads and creating a stronger, more durable threaded connection for automotive, mechanical and workshop maintenance Durable Materials: 4241 HSS for HSS Twist Drill and HSS Screw Tap; 40Cr Installation Tool; 304 Stainless Thread Inserts help create long-lasting threads and support higher torque in weaker metals; 135-degree apex angle supports efficient drilling Wide Application and Storage: Suitable for many metals, composites, polymers and other compatible materials; useful for automotive and plumbing applications; all parts are organized in a blow molded case for transport and storage between jobs