Heli-coil 18551-2-30 Unc Mandrel Thread Insert Tool 8-32

Product Description

The HELI-COIL 18551-2-30 is a mandrel-type power installation tool designed for driving threaded wire inserts into pre-tapped holes. It accepts 8-32 UNC thread size inserts and is built for use with power drivers, reducing hand fatigue and installation time on high-volume jobs. The mandrel engages the insert tang and winds the coil into the tapped hole with consistent torque transfer. This tool is appropriate for production environments and field repair work where speed and repeatability matter. Machinists, maintenance technicians, and assembly professionals are the primary users.

This tool is suited for applications requiring UNC threaded insert installation in metal, plastic, or composite base materials. It works in environments where stripped or damaged threads need restoration, or where virgin tapped holes require reinforced thread inserts for added durability. Typical use cases include aerospace ground support, industrial equipment maintenance, and automotive component repair. The mandrel style is preferred when power screwdriver or drill driver installation is required rather than manual hand installation.

Key Features

• Mandrel drive design for compatibility with power installation equipment
• Accepts both bulk inserts and strip feed inserts for flexible workflow
• 8-32 UNC thread size for common fastener applications
• Lightweight at 0.25 pounds for extended use without fatigue
• Consistent insert seating depth with power-driven installation

Compatibility

Compatible with both bulk inserts and strip feed inserts in 8-32 UNC thread size. Designed as an OEM-style installation tool for use with HELI-COIL wire thread insert systems of the corresponding thread specification.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician familiar with threaded insert systems. Ensure the base material has been tapped to the correct HELI-COIL specification for 8-32 UNC inserts before driving. Use appropriate power driver torque settings to avoid overdriving or damaging the insert coil. After installation, break off the drive tang using the appropriate tang break-off tool per standard procedure.