MRO/AFT-MK KIT 1-3/8-6UNC - Heli Coil Products

This Heli-Coil 5521-22 MRO/AFT-MK KIT provides a comprehensive solution for repairing damaged 1-3/8 inch-6 UNC coarse threads in professional automotive and industrial applications. Designed for durability and precision, this kit restores stripped or compromised threads to their original integrity, extending the life of components and assemblies. It comes complete with all necessary tools for effective thread restoration.

Key Features

• Inch Coarse Thread Repair: Specifically designed for 1-3/8 inch-6 TPI (Threads Per Inch) Inch Coarse threads, ensuring precise and reliable repairs.
• Comprehensive Kit Contents: Includes a high-speed steel tap, an installation tool, a quantity of Heli-Coil inserts, and detailed instructions to facilitate a complete thread repair process.
• Professional-Grade Drill Bit: Features a 1-13/32 inch high-speed steel drill bit, compatible with a 1/2 inch chuck, engineered for preparing the damaged hole with accuracy.
• Robust Metal Case: Packaged in a sturdy metal case, protecting the tools and inserts while providing organized storage and easy transport in demanding workshop environments.
• Durable Insert Length: Provides 2.062 inch long inserts, suitable for various material thicknesses and ensuring strong, lasting thread repairs.

Applications

This professional-grade thread repair kit is essential for maintenance, repair, and overhaul (MRO) operations in a wide range of industrial and automotive settings. It is ideal for restoring damaged threads in heavy machinery, large engine components, industrial equipment, construction vehicles, and other applications where robust 1-3/8"-6 UNC fasteners are utilized. Typical scenarios include repairing stripped spark plug threads, exhaust manifold bolt holes, or any critical component requiring strong, restored threads.

Specifications

• Manufacturer: Heli-Coil Products
• Model Number: 5521-22
• Thread Type: Inch Coarse
• Thread Size: 1-3/8 Inch-6 TPI
• Drill Size: 1-13/32 Inch (for 1/2 Inch Chuck)
• Insert Length: 2.062 Inch
• Packaging Type: Metal Case