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

HELI-COIL Insert Installation Tool: Prewinder Type IV, Helical Inserts

The HELI-COIL Prewinder Type IV is a steel installation tool for helical inserts, designed for metric coarse right-hand threads (MPN 7751-24). 3G Electric interprets demand and delivers this tool across 14 industrial…

SKU 3G-OTH-531103

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

HELI-COIL
Manufacturer Part Number
7751-24
Type
Helical Inserts, Steel
Tool Type
Prewinder Type IV
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 IV is a steel installation tool for helical inserts, designed for metric coarse right-hand threads (MPN 7751-24). 3G Electric interprets demand and delivers this tool across 14 industrial departments — and we supply far more than is listed — with specialist depth in combustion, pumps and controls as a trust anchor.

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 IV used for?

The HELI-COIL Prewinder Type IV 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 industrial repair to restore stripped threads.

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

The HELI-COIL Prewinder Type IV (MPN 7751-24) is a steel tool for helical inserts. It is metric, compatible with coarse right-hand threads, and designed for helical insert types. 3G Electric supplies this tool across 14 industrial departments, with specialist depth in combustion, pumps and controls.

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

3G Electric supplies the HELI-COIL Prewinder Type IV 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 orders.

How to install a helical insert using the Prewinder Type IV?

To install a helical insert with the Prewinder Type IV, first tap the hole to the correct metric coarse thread. Place the insert onto the tool's tang, then rotate the tool clockwise to wind the insert into the hole. After installation, break off the tang using a tang break-off tool.

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.
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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 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.
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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.
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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.
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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.
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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.