Brownells Barrel Liner Drill, .38-40 Liner, .593'' (15.1Mm)

The Brownells Barrel Liner Drill in .38-40 is a precision gunsmithing tool built for gunsmiths and serious shooters tackling barrel restoration and relining work on vintage or worn firearms. If you're bringing an old .38-40 back to life or replacing a shot-out barrel, this high-speed steel drill creates the exact bore geometry needed for a tight, consistent fit when installing a barrel liner—the foundation of accurate, reliable shooting after a repair.

Precision matters when you're relining a barrel. This drill is machined to exacting tolerances and designed to bore straight and true, minimizing the variances that can throw off accuracy or cause fitment issues. With a 15-1/16" overall length and a 1" pilot, it's sized to handle barrels up to 25" long, giving you the reach you need for most rifle projects. The .38-40 version features a 0.391" pilot diameter and 0.593" major diameter—the exact specs required for proper liner installation on .38-40 Winchester barrels.

High-speed steel construction means this drill stands up to the demands of repeated use, whether you're a professional gunsmith or a dedicated hobbyist working in your shop. It arrives in a protective plastic case, ready to be part of your gunsmithing toolkit. Brownells barrel liner drills have earned a solid reputation among restorers for their consistent performance and the clean, uniform bores they produce—critical when you're preserving a firearm's authenticity while restoring its function.

Key Features

• High-speed steel construction for durability and repeated use
• Precision-machined to exact tolerances for straight, uniform bore
• Handles barrels up to 25" in length
• 1" pilot for stable, controlled drilling
• .38-40 caliber-specific dimensions: 0.391" pilot, 0.593" major diameter
• Includes protective plastic carrying case

Specifications

Frequently Asked Questions

What calibers does the Brownells barrel liner drill come in?

Brownells offers barrel liner drills in multiple calibers including .22, .25-20, .38-40, and .44-40. This particular drill is caliber-specific to .38-40 Winchester barrels.

What size barrels can this drill handle?

The .38-40 liner drill can work on barrels up to 25" in length, making it suitable for most rifle relining projects.

What comes in the box?

The drill comes in a protective plastic case to keep it organized and protected in your shop.

Is this tool suitable for professional gunsmiths and home shop users?

Yes. The high-speed steel construction and precision machining make it reliable for both professional gunsmithing work and dedicated hobbyist restoration projects.