Lyman 7777760 Flash Hole Uniformer and Deburring Tool for .22 to .45 Caliber Cases

The Lyman 7777760 Flash Hole Uniformer and Deburring Tool removes internal burrs from cartridge case flash holes to support consistent primer ignition and reliable handloading performance. Designed for use with cases ranging from .22 to .45 caliber, this specialized reloading tool helps prepare cases by smoothing imperfections left during the manufacturing process. It is compatible with a broad selection of cartridges, from .22 Hornet through .45-70 Government.
The tool features a durable tool steel cutter that is inserted through the case neck and guided into the flash hole. Once positioned, a clockwise turn removes internal burrs without requiring complicated adjustments or specialized equipment. The adjustable stop collar allows the Lyman uniformer to accommodate different case sizes, helping establish repeatable cutter depth and consistent case preparation across multiple cartridge types.
This single-tool design is a practical addition to a reloading bench for shooters who prepare cases in several calibers. Compatible case sizes include .22, .24, .25, .27, .28, .30, .35, .44, and .45 caliber applications. The compact deburring tool is easy to handle and suitable for routine case maintenance, whether used during initial case preparation or as part of an ongoing brass-processing workflow. The Lyman 7777760 provides a straightforward way to improve flash hole consistency and maintain uniform ammunition preparation.

Features:

• Type: Flash hole uniformer and deburring tool

• Caliber Range: Suitable for .22 to .45 caliber cases

• Compatible Cartridges: Works with cases from .22 Hornet through .45-70 Government

• Cutter: Durable tool steel cutter removes internal flash hole burrs

• Adjustment: Adjustable stop collar accommodates different case sizes

• Operation: Insert the cutter through the case neck and turn clockwise to deburr

• Compatible Sizes: Supports .22, .24, .25, .27, .28, .30, .35, .44, and .45 caliber cases

• Quantity: One tool