HELI-COIL Insert Installation Tool: Prewinder Type AM, Helical Inserts
The HELI-COIL Prewinder Type AM is a steel installation tool for helical inserts, designed for metric coarse right-hand threads (MPN 3747-5). 3G Electric sources this tool as part of our broader industrial supply…
SKU 3G-OTH-531052
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Product Description
The HELI-COIL Prewinder Type AM is a steel installation tool for helical inserts, designed for metric coarse right-hand threads (MPN 3747-5). 3G Electric sources this tool as part of our broader industrial supply capability across 14 departments, with specialist depth in combustion, pumps, and controls as an authorised distributor for brands like Schneider, ABB, Siemens, SKF, Festo, Fluke, Interpump, and FBR.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the HELI-COIL Prewinder Type AM used for?
The HELI-COIL Prewinder Type AM is a steel installation tool used to prewind helical inserts into metric coarse right-hand threads. It ensures proper insert alignment before final installation, commonly applied in automotive, aerospace, and general manufacturing repairs where thread reinforcement is needed.
What are the specifications of the HELI-COIL Prewinder Type AM (MPN 3747-5)?
The HELI-COIL Prewinder Type AM (MPN 3747-5) is a steel tool for helical inserts. It is metric, compatible with coarse right-hand threads, and designed for helical insert types. The system of measurement is metric, and the tool type is Prewinder Type AM.
Where to buy the HELI-COIL Prewinder Type AM worldwide?
3G Electric supplies the HELI-COIL Prewinder Type AM worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this installation tool to your facility. Contact us for availability and lead time on this metric coarse thread prewinder.
How to install a helical insert using the HELI-COIL Prewinder Type AM?
To install a helical insert with the HELI-COIL Prewinder Type AM, first tap the hole to the correct metric coarse thread size. Place the insert onto the prewinder tang, then rotate the tool clockwise to wind the insert into the tapped hole. Break off the tang after installation per standard practice.
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Common applications for HELI-COILHELI-COIL Products
3G Electric supplies HELI-COIL installation tools for helical inserts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









