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HELI-COIL Insert Installation Tool: Prewinder Type AM, Helical Inserts - Installation Tools for Helical Inserts
HELI-COILInstallation Tools for Helical Inserts

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 right-hand coarse metric threads (MPN 3747-4). 3G Electric interprets this demand and delivers the genuine tool, backed…

SKU 3G-OTH-531048

Brand
HELI-COIL
Item
Insert Installation Tool: Prewinder Type AM, Helical Inserts
Category
Installation Tools for Helical Inserts
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Technical Specifications

HELI-COIL
Manufacturer Part Number
3747-4
Type
Helical Inserts, Steel
Tool Type
Prewinder Type AM
System of Measurement
Metric
Compatible Insert Type
Helical Inserts
Compatible Thread Type
Coarse
Compatible Thread Direction
Right Hand
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HELI-COIL Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The HELI-COIL Prewinder Type AM is a steel installation tool for helical inserts, designed for right-hand coarse metric threads (MPN 3747-4). 3G Electric interprets this demand and delivers the genuine tool, backed by specialist sourcing across 14 industrial departments — including combustion, pumps, and controls — to ensure you get the right solution, not just a catalog.

Frequently Asked Questions

What is the HELI-COIL Prewinder Type AM installation tool used for?

The HELI-COIL Prewinder Type AM (MPN 3747-4) is a steel installation tool used to prewind helical inserts into right-hand coarse metric threads. It ensures proper insert alignment and seating during repair or assembly. 3G Electric supplies this genuine tool globally, backed by specialist sourcing across 14 industrial departments.

What are the specifications of the HELI-COIL Prewinder Type AM?

The HELI-COIL Prewinder Type AM (MPN 3747-4) is a steel tool for helical inserts. It is designed for right-hand coarse metric threads. The system of measurement is metric, and the compatible insert type is helical inserts. 3G Electric sources this genuine HELI-COIL tool for worldwide delivery.

Where to buy the HELI-COIL Prewinder Type AM worldwide?

3G Electric supplies the genuine HELI-COIL Prewinder Type AM (MPN 3747-4) to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we interpret your demand and deliver the right tool, backed by specialist sourcing across 14 departments.

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. Then, place the insert onto the prewinder tang and rotate the tool clockwise to wind the insert into the hole. 3G Electric supplies this genuine HELI-COIL tool and can advise on proper installation practices.

Used in

Common applications for HELI-COIL
Aerospace engine repair — HELI-COIL STI taps for M12x1.75 metric threads in aluminum alloy components
Automotive transmission rebuild — HELI-COIL STI taps for 7/16-14 UNC threads in cast iron housings
Industrial pump maintenance — HELI-COIL STI taps for #10-32 UNF threads in stainless steel pump bodies
Hydraulic cylinder repair — HELI-COIL STI taps for M6x1 metric threads in steel cylinder heads
General manufacturing — HELI-COIL STI taps for 9/16-18 UNF threads in machinery base plates

HELI-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.

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HELI-COIL Insert Installation Tool: Prewinder Type II, Helical Inserts, Steel (MPN 7751-3). Key specifications — Compatible Insert Type: Helical Inserts; Compatible Thread Direction: Right Hand; Compatible Thread Type: Coarse; System of Measurement: Metric; Brand: HELI-COIL; Tool Type: Prewinder Type II.
HELI-COIL
HELI-COIL Insert Installation Tool: Prewinder Type II, Helical Inserts, Steel (MPN 7751-3). Key specifications — Compatible Insert Type: Helical Inserts; Compatible Thread Direction: Right Hand; Compatible Thread Type: Coarse; System of Measurement: Metric; Brand: HELI-COIL; Tool Type: Prewinder Type II.
HELI-COIL Threaded Mandrel Tool: Threaded Mandrel Type AM, Helical Inserts, Steel (MPN 3747-12). Key specifications — Compatible Insert Type: Helical Inserts; Compatible Thread Direction: Right Hand; Compatible Thread Type: Coarse; System of Measurement: Metric; Brand: HELI-COIL; Tool Type: Threaded Mandrel Type AM.
HELI-COIL
HELI-COIL Threaded Mandrel Tool: Threaded Mandrel Type AM, Helical Inserts, Steel (MPN 3747-12). Key specifications — Compatible Insert Type: Helical Inserts; Compatible Thread Direction: Right Hand; Compatible Thread Type: Coarse; System of Measurement: Metric; Brand: HELI-COIL; Tool Type: Threaded Mandrel Type AM.
HELI-COIL Insert Installation Tool: Prewinder Type AM, Helical Inserts, Steel (MPN 4973-12). Key specifications — Compatible Insert Type: Helical Inserts; Compatible Thread Direction: Right Hand; Compatible Thread Type: Fine; System of Measurement: Metric; Brand: HELI-COIL; Tool Type: Prewinder Type AM.
HELI-COIL
HELI-COIL Insert Installation Tool: Prewinder Type AM, Helical Inserts, Steel (MPN 4973-12). Key specifications — Compatible Insert Type: Helical Inserts; Compatible Thread Direction: Right Hand; Compatible Thread Type: Fine; System of Measurement: Metric; Brand: HELI-COIL; Tool Type: Prewinder Type AM.
HELI-COIL Installation Tool: Threaded Mandrel for Tangless Inserts, Helical Inserts, Steel (MPN 7571-02B). Key specifications — Compatible Insert Type: Helical Inserts; Compatible Thread Direction: Right Hand; Compatible Thread Type: Coarse; System of Measurement: Inch; Brand: HELI-COIL; Tool Type: Threaded Mandrel for Tangless Inserts.
HELI-COIL
HELI-COIL Installation Tool: Threaded Mandrel for Tangless Inserts, Helical Inserts, Steel (MPN 7571-02B). Key specifications — Compatible Insert Type: Helical Inserts; Compatible Thread Direction: Right Hand; Compatible Thread Type: Coarse; System of Measurement: Inch; Brand: HELI-COIL; Tool Type: Threaded Mandrel for Tangless Inserts.
HELI-COIL Threaded Mandrel Tool: Prewinder Type III, Helical Inserts, Steel (MPN 3724-20). Key specifications — Compatible Insert Type: Helical Inserts; Compatible Thread Direction: Right Hand; Compatible Thread Type: Coarse; System of Measurement: Inch; Brand: HELI-COIL; Tool Type: Prewinder Type III.
HELI-COIL
HELI-COIL Threaded Mandrel Tool: Prewinder Type III, Helical Inserts, Steel (MPN 3724-20). Key specifications — Compatible Insert Type: Helical Inserts; Compatible Thread Direction: Right Hand; Compatible Thread Type: Coarse; System of Measurement: Inch; Brand: HELI-COIL; Tool Type: Prewinder Type III.
HELI-COIL Threaded Mandrel Tool: Threaded Mandrel Type AM, Helical Inserts, Steel (MPN 2288-8). Key specifications — Compatible Insert Type: Helical Inserts; Compatible Thread Direction: Right Hand; Compatible Thread Type: Coarse; System of Measurement: Inch; Brand: HELI-COIL; Tool Type: Threaded Mandrel Type AM.
HELI-COIL
HELI-COIL Threaded Mandrel Tool: Threaded Mandrel Type AM, Helical Inserts, Steel (MPN 2288-8). Key specifications — Compatible Insert Type: Helical Inserts; Compatible Thread Direction: Right Hand; Compatible Thread Type: Coarse; System of Measurement: Inch; Brand: HELI-COIL; Tool Type: Threaded Mandrel Type AM.
HELI-COIL Thread Gauge: Thread Gauge, Helical Inserts, 5/16"-18 Compatible External Thread Size (MPN 1442-5). Key specifications — Compatible Insert Type: Helical Inserts; Compatible Thread Direction: Right Hand; Compatible Thread Type: Coarse; System of Measurement: Inch; Brand: HELI-COIL; Tool Type: Thread Gauge.
HELI-COIL
HELI-COIL Thread Gauge: Thread Gauge, Helical Inserts, 5/16"-18 Compatible External Thread Size (MPN 1442-5). Key specifications — Compatible Insert Type: Helical Inserts; Compatible Thread Direction: Right Hand; Compatible Thread Type: Coarse; System of Measurement: Inch; Brand: HELI-COIL; Tool Type: Thread Gauge.
HELI-COIL Thread Gauge: Thread Gauge, Helical Inserts, 1/4"-20 Compatible External Thread Size (MPN 1442-4). Key specifications — Compatible Insert Type: Helical Inserts; Compatible Thread Direction: Right Hand; Compatible Thread Type: Coarse; System of Measurement: Inch; Brand: HELI-COIL; Tool Type: Thread Gauge.
HELI-COIL
HELI-COIL Thread Gauge: Thread Gauge, Helical Inserts, 1/4"-20 Compatible External Thread Size (MPN 1442-4). Key specifications — Compatible Insert Type: Helical Inserts; Compatible Thread Direction: Right Hand; Compatible Thread Type: Coarse; System of Measurement: Inch; Brand: HELI-COIL; Tool Type: Thread Gauge.