HELI-COIL Threaded Mandrel Tool: Threaded Mandrel Type I, Helical Inserts
The HELI-COIL Threaded Mandrel Tool (Type I, MPN 551-02) is an inch-system installation tool for steel helical inserts with right-hand coarse threads. 3G Electric sources this genuine OEM tool as part of our…
SKU 3G-OTH-530893
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Product Description
The HELI-COIL Threaded Mandrel Tool (Type I, MPN 551-02) is an inch-system installation tool for steel helical inserts with right-hand coarse threads. 3G Electric sources this genuine OEM tool as part of our industrial supply across 14 departments, with specialist expertise in combustion, pumps and controls.
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 Threaded Mandrel Tool Type I used for?
The HELI-COIL Threaded Mandrel Tool Type I (MPN 551-02) is used to install steel helical thread inserts into pre-tapped holes. It is designed for inch-system, right-hand coarse threads, providing a reliable method to repair or reinforce threads in metal components across industrial applications.
What are the specifications of the HELI-COIL 551-02 mandrel tool?
The HELI-COIL 551-02 is a Type I threaded mandrel tool for steel helical inserts. It is inch-system, compatible with right-hand coarse threads, and made by HELI-COIL. 3G Electric supplies this genuine OEM tool as part of our industrial offering across 14 departments, including specialist expertise in combustion, pumps and controls.
Where to buy HELI-COIL threaded mandrel tools worldwide?
3G Electric supplies the HELI-COIL Threaded Mandrel Tool Type I (551-02) to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive genuine OEM installation tools for helical inserts. Contact us to order this inch-system, right-hand coarse thread tool for your industrial maintenance needs.
How to install helical inserts with a HELI-COIL mandrel tool?
To install helical inserts with the HELI-COIL Type I mandrel tool, first tap the hole to the correct inch coarse thread size. Place the insert onto the mandrel tip, then align and turn the tool clockwise to wind the insert into the hole. Break off the tang after installation. Always follow the manufacturer's instructions for proper thread repair.
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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.


