Heli-coil 18551-02-30 Unc Mandrel Thread Insert Tool

Product Description

The HELI-COIL 18551-02-30 is a mandrel-type power installation tool designed for driving threaded wire inserts into prepared host materials. Built for UNC thread standards, this tool accepts a 2-56 thread size and is compatible with both bulk inserts and strip feed inserts, giving technicians flexibility on the bench or in the field. At 0.25 pounds, it is a lightweight, single-purpose tool engineered for consistent, repeatable insert installation. Machinists, assembly technicians, and maintenance professionals use mandrel-style power drivers to achieve proper seating depth and torque without damaging the insert coil during installation.

This tool is suited for light-duty fastener repair and thread reinforcement applications where 2-56 UNC inserts are required. Common use cases include restoring stripped threads in aluminum, magnesium, plastic, and other soft materials found in HVAC equipment housings, electrical enclosures, pump bodies, and precision mechanical assemblies. The mandrel design is intended for use with a power driver rather than a hand installation tool, increasing throughput in production and field repair environments.

Key Features

• Mandrel-type power installation tool for 2-56 UNC threaded wire inserts
• Compatible with both bulk inserts and strip feed inserts
• UNC thread standard for broad fastener compatibility
• Lightweight at 0.25 pounds for reduced operator fatigue
• Designed for use with a power driver for consistent insert seating

Compatibility

Compatible with bulk inserts and strip feed inserts in 2-56 UNC thread size. Designed as an OEM-style power installation tool for use with HELI-COIL wire thread insert systems of the same thread specification.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician familiar with threaded insert systems. Ensure the host material has been properly tapped to the correct HELI-COIL tap size for 2-56 UNC before using this tool. Secure the workpiece before driving inserts to prevent movement during installation. Do not exceed the recommended driver speed for the insert size, as overspeeding can cause insert damage or improper seating depth.