HeliCoil Threaded Mandrels, Prewinders & Tang Break-Off Tools

Threaded Mandrels:

• Mandrels are used to clamp and hold onto the tang or notch of a coil insert. They are attached to the front of the prewinder and guide the insert into a threaded hole.

Prewinders:

• Prewinders are used to compress the diameter of a coil insert before being installed into a threaded hole.

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