Expander Die Body with Lock Ring

(24 reviews) Write a Review
Frequently bought together:


Expanding the case neck is an important step in the neck turning process, but many reloaders are finding case neck expanding equally important even if not neck turning. Running new brass over an expanding mandrel as a part of your case prep routine is always a good idea. This step irons out any dings, prepares the case mouth for deburring and uniforms neck tension.

Our Expander Die Body is as simple as they come. Drop the Expander Mandrel in the top, secure it with a set screw and you're ready to go. The set screw in the top allows the user to choose to free-float the mandrel or to lock it tightly in place.
Utilizes 3/8" shank expander mandrels from PMA Tool, 21st Century Shooting and Sinclair International.
Includes Lock Ring.
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24 Reviews

  • 5
    expander die

    Posted by steve minckler on 7th Sep 2021

    the fit and finish is excellent , works perfect with the .220 Russian to 6mm carbide mandrel .

  • 5
    expander die body

    Posted by John Pohl on 18th Jul 2021

    Beautifully machined, works great !

  • 5
    Expander die

    Posted by Roger on 5th Jul 2021

    Very well made die. I like that it uses several brands of mandrels for improved availability.

  • 5
    expander die body with lock ring

    Posted by Mark Lee on 1st Jul 2021

    I PAID WITH CHECK AND MY ORDER CAME VERY FAST. THANK YOU If you have a carbide mandrel .3075 let me know

  • 5
    Expander Die Body

    Posted by Mark Georgen on 28th May 2021

    Very happy with the quality. The option to allow the mandrel to float by not tightening the allen head screw is a plus.

  • 5

    Posted by Joe on 27th Feb 2021

    Works great, shipped quickly and at a great price. Thank you!

  • 5
    PMA Expander Die Body

    Posted by Larry on 26th Feb 2021

    High quality, highly recommended, I will definitely consider PMA in the future for mandrels and other products

  • 5
    Excellent Die

    Posted by Joe Massmini on 26th Feb 2021

    An excellent die at a very fair price. I like being able to loosen the set screw to float the mandrel. Looking forward to using other PMA products!

  • 5
    Expander die body

    Posted by Doug McFarling on 1st Feb 2021

    Fabulous tool for my bench. Quality machining , great fit and function. Nice that it accepts other mandrels.

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