Brownells Barrel Liner Drill, .44-40 Liner, .593'' (15.1Mm)

The Brownells Barrel Liner Drill in .44-40 is a precision gunsmithing tool built for gunsmiths and firearms enthusiasts tackling barrel restoration and relining projects. If you're working to bring a vintage or worn firearm back to life—or simply need to rebarrel with exacting standards—this high-speed steel drill creates the exact bore geometry required for a .44-40 barrel liner to seat perfectly and function reliably.

Barrel liner work demands accuracy that hand tools and standard drills simply can't deliver. This Brownells drill is engineered to machine a uniform, straight bore that holds tight tolerances, minimizing the fit inconsistencies that can compromise accuracy and structural integrity. The .593" major diameter and .419" pilot are sized specifically for .44-40 liners, so you're getting geometry matched to your caliber, not a compromise. At 15-1/16" overall length with a 1" pilot, the drill handles barrels up to 25" long—covering most hunting rifles and vintage revolvers you'll encounter.

Built from high-speed steel and engineered to withstand repeated use, this is a tool that will last through multiple projects if you're serious about the craft. It ships in a protective plastic case, keeping the cutting edges safe in the shop or field.

Key Features

• High-speed steel construction for durability and heat resistance during drilling
• Precision-ground to exact tolerances for consistent, uniform bore diameter
• .593" major diameter and .419" pilot diameter matched to .44-40 liner specs
• 15-1/16" overall length with 1" pilot—works on barrels up to 25" long
• Protective plastic case included

Specifications

Frequently Asked Questions

Will this drill work for .44-40 barrel relining projects?

Yes. The .593" major diameter and .419" pilot are sized to create the bore geometry required for a .44-40 barrel liner. This is a caliber-specific tool designed for that exact application.

What's the maximum barrel length I can work on with this drill?

The drill is engineered to handle barrels up to 25" in length, which covers most hunting rifles, carbines, and vintage revolvers.

Is this tool suitable for professional gunsmithing, or is it a hobbyist tool?

The Brownells Barrel Liner Drill is built for both professional gunsmiths and serious hobbyists. It's precision-ground to exact tolerances and made from durable high-speed steel to withstand repeated use in a working shop.

What comes in the box?

The drill arrives in a protective plastic case designed to keep the cutting edges safe during storage and transport.