Description
This Forster conversion kit brings the E-Z-Just shell holder system to Co-Ax presses that shipped without it. Early Co-Ax presses built before 1983 did not come with the E-Z-Just setup, so this kit is the piece that lets those older machines take advantage of the same self-centering, universal priming that newer presses enjoy. If you've been hunting down individual shell holders for every cartridge you load, this is the part that frees you from that.
What the E-Z-Just Conversion Does for Your Co-Ax
The whole idea behind the E-Z-Just design is that the jaws grip the case rim directly, so there's no stack of caliber-specific shell holders to buy, store, or lose in the bottom of a range bag. The jaws close securely on most modern rifle and pistol brass with a rim thickness between .045 and .072 inches, which covers the vast majority of what reloaders run across the bench. Because the case is held and centered as it meets the primer, you get good concentricity between the flash hole and the primer, and that consistency shows up as cleaner, more uniform primer seating round after round.
Fitting the E-Z-Just Kit to Older Presses
Forster has been building reloading and gunsmithing tools in the USA since 1935, and the Co-Ax line has a loyal following among precision handloaders for a reason. This conversion is a straightforward way to modernize a well-worn press rather than replacing the whole thing. If you picked up a used Co-Ax, inherited one, or simply have an older model that never had the E-Z-Just shell holder, this kit gets it current and keeps that trusty press earning its spot on your bench for years to come.
Key Specifications
- Manufacturer: Forster Products
- Manufacturer Part Number: 028000
- UPC: 757253002670
- Type: E-Z-Just Shell Holder Priming Conversion Kit
- Compatibility: Forster Co-Ax Press (upgrades presses built before 1983)
- Case Rim Thickness Range: .045 in to .072 in
- Shell Holder System: Universal self-centering jaws, no separate shell holders required
- Category: Case Preparation / Reloading Press Accessory
- Country of Origin: USA
What’s Included
- Forster E-Z-Just Shell Holder Priming Conversion Kit for Co-Ax Press
Frequently Asked Questions
What does the E-Z-Just Shell Holder Priming Conversion Kit do?
It equips a Forster Co-Ax press with the E-Z-Just shell holder system so you can prime cases right on the press. The self-centering jaws grip the case rim directly, which keeps the flash hole and primer in line for consistent seating. It also means you don't need a separate shell holder for every cartridge.
Will this conversion kit work with my Co-Ax press?
This kit is made to upgrade Co-Ax presses that did not originally include the E-Z-Just shell holder, which applies to presses produced before 1983. If you have an older Co-Ax or picked one up used without the E-Z-Just setup, this is the part that brings it up to date.
What size cases will the E-Z-Just jaws hold?
The jaws close securely on most modern rifle and pistol brass with a rim thickness between .045 and .072 inches. That range covers the bulk of common reloading cartridges, so most of what you run on the bench will fit without issue.
Do I still need individual shell holders after installing this kit?
No, that's the main advantage of the E-Z-Just design. The adjustable jaws take the place of caliber-specific shell holders, so you can prime a wide variety of cases without buying and storing a separate holder for each one.




Reviews
There are no reviews yet.