PMA Tool

Expander Die Body with Lock Ring

(51 reviews) Write a Review
SKU:
PED-1000
$39.95
Frequently bought together:

Description

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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51 Reviews

  • 5

    Expander Die Body is Great

    Posted by Bill Cummings on 3rd Feb 2026

    The expander works good, easy to change mandrel, fit the mandrel I bought with it perfect.

  • 5

    Expander Die Body that's easy to use and works great

    Posted by Bill Cummings on 3rd Feb 2026

    Simple and does the job great, bought the 22 to 6 mm expander mandrel to use it with. Both fit together perfect and made expanding before turning smooth. Easy to remove or change the mandrel.

  • 5

    Getting good concentricity

    Posted by Vladimir on 3rd Feb 2026

    I am using this in conjunction with the carbide expander die, and it substanially improved the concenticity of the 220 brass that I expand for neck turning

  • 5

    PMA quality as always

    Posted by Mike on 16th Jan 2026

    Fit and finish are excellent as with all pma products. This is my second expander body and am very happy with it. Fits the expander also by pma well and expanded cases have minimal runout.

  • 5

    Neck expander die.

    Posted by Barry on 15th Dec 2025

    This expander die and mandrel is the second set i have ordered from pma. They will not be the last ones I order. Simple, fast set up, well made. Its easier to use this die and mandrel set up in an extra step than using the neck sizer inside my resizing die. This is my experience and opinion.

  • 5

    Mandrel die body

    Posted by Seal Jonathan on 3rd May 2025

    Used TIN mandrels… perfect fit, worked slick??

  • 5

    Expander mandrel

    Posted by Richard on 12th Mar 2025

    Prepped the brass perfectly for turning

  • 5

    Expander die body.

    Posted by Erick on 10th Jan 2025

    Once I figured it out it was a hex head bolt that holds the expander mandrels in it worked as advertised. On the recommendation of PMA I kept the hex bolt slightly loose to allow a little bit of free float for the mandrel. Did exactly what was supposed to do.

  • 5

    Expander Die Body

    Posted by Clay Fowler on 29th Dec 2024

    I shoot a 22 Waldog and 6 Talldog, neither of which are very darn tall! This expander die works very well with these shorter cases and my PPC. I have several expander dies and this one stays with my short range brass prep kit.

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