LYMAN Outside Deburring Tool .17–.45 7810222

Clean outer edge after trimming: The LYMAN external deburring tool 7810222 removes burrs on the outside of the case mouth. It is ideal for reloaders who want to carefully rework trimmed cases and avoid sharp outer edges.
Precise external deburring from .17 to .45
The precision-machined and hardened cutting area is designed for cartridge cases from .17 to .45 caliber. The non-slip handle allows for sensitive, manual guidance. The tool is typically used immediately after trimming: place on the case mouth, rotate with light and even pressure, and remove only as much material as needed until the outer burr is gone.
This is the right choice if …

you want to cleanly deburr cases on the outside after trimming,
you work with various case calibers between .17 and .45,
you are looking for a compact hand tool without a machine.

Important distinctions before purchase


For the outer edge only: This model does not create an internal chamfer and does not replace an internal deburring tool or VLD chamfer cutter.

Not a case trimmer: It does not shorten cases but removes the outer burr created after trimming.

Caliber limit: Approved for cases from .17 to .45; larger cases like .50 BMG require a tool designed for that purpose.

Work with control: Excessive pressure can remove unnecessary material. The key is a smooth, burr-free outer edge.

Scope of delivery
1 × LYMAN external deburring tool 7810222 with handle. Other case processing tools or cases are not included.
Quick use guide

Check case for correct length and a clean, empty condition.
Position tool centered on the outer edge of the case mouth.
Apply light pressure and perform a few even rotary movements.
Check case mouth and rework minimally if necessary.

Frequently asked questions
Does the tool work inside and outside? No. The 7810222 is intended exclusively for the outer edge.
Is it suitable for .223 Remington or .308 Winchester? Yes, both are within the approved range from .17 to .45 caliber.
Do I need a separate handle? No. The tool is supplied as a hand-guided external deburring tool with a non-slip handle.