Hornady Flash Hole Deburr Tool Universal (398112) is a multi-caliber case prep tool that removes burrs from the inside of cartridge case flash holes to promote consistent primer ignition and more uniform powder burn. This Hornady 398112 flash hole deburring tool uses floating pilots and an adjustable depth stop to quickly uniform flash holes across a wide range of rifle cases.
Key Features
- Manufacturer part number: 398112
- Tool type: Flash hole deburring and uniforming tool
- Caliber range: Fits cases from approximately .224 up to .375
- Construction: Steel cutter with floating pilots
- Design feature: Chamfer/deburr depth stop for consistent cut depth
- Function: Removes burrs from inner flash hole surface
- Compatibility: Used with Hornady Universal Handle and similar 8-32 threaded tool holders
- Application: Rifle and compatible pistol cartridges with accessible flash holes
Special Features
- Floating pilots guide the cutter directly toward the flash hole so the tool stays centered and produces a uniform cut on each case.
- Multi-caliber pilot system allows one tool to service a broad range of case neck diameters, reducing the need for caliber-specific deburring tools.
- Adjustable chamfer and deburr depth stop sets a consistent cutting depth, helping every flash hole in a batch match in size and internal finish.
- Steel construction provides a durable cutter and pilot assembly that withstands repeated use on large quantities of brass.
- Designed to integrate with Hornady’s Universal Handle so you can use it as a comfortable handheld tool at the bench.
Practical Benefits
- The Hornady Flash Hole Deburr Tool Universal (398112) fits precision-minded reloaders who want more consistent ignition by cleaning up factory burrs that can disrupt primer flame into the powder column.
- Uniform, burr-free flash holes help your loads produce more consistent velocities, which supports tighter groups and improved downrange predictability in your rifles.
- Multi-caliber capability lets you move from small varmint cartridges to larger hunting rounds with the same tool, simplifying your case prep lineup.
- The depth stop and floating pilots let you work quickly through large lots of brass while maintaining the same internal flash hole profile from case to case, supporting a more uniform ammunition lot.
- If you are working to tighten extreme spreads and standard deviation in your handloads, the Hornady Flash Hole Deburr Tool Universal (398112) is a proven platform for systematic, repeatable flash hole preparation.
| MANUFACTURER | HORNADY |