Brownells #1 Acid Brush 3/8'' Bristle Width 6'' Length 144/Pack

The Brownells #1 acid brush is a workhorse for gunsmiths, reloaders, and shooters who need a reliable tool for precise applications in the shop and field. This 6-inch brush with a 3/8-inch bristle width handles everything from applying oil and solvents to cleaning tight spaces in actions and receivers. At this size and bristle configuration, it's nimble enough for detail work yet sturdy enough for frequent use—the kind of tool that earns its place in every serious shooter's kit.

Acid brushes have been standard in metalworking and manufacturing for generations, and for good reason: they're affordable, effective, and built to last through countless jobs. Whether you're applying bore cleaner, brushing away metal filings from your last machining project, or spreading a light coat of protective oil on a finished frame, this brush won't shed bristles or fall apart after a few uses. Coming in a bulk pack of 144, you can keep them where you need them—cleaning station, reloading bench, truck toolbox, range bag—without worrying about running short.

The 6-inch length gives you reach without being unwieldy, and the tapered design means you can get into corners, grooves, and tight chambers where larger brushes won't fit. It's equally at home with thin solvents and thicker greases, making it the kind of multipurpose tool that justifies bulk buying.

Key Features

• 3/8-inch bristle width for precision application and detail work
• 6-inch overall length for reach and control
• Bulk pack of 144 for stocking multiple locations
• Durable bristles suitable for oils, solvents, and greases
• Time-tested tinner's acid brush design

Specifications

Frequently Asked Questions

What can I use an acid brush for in firearms cleaning and maintenance?

Acid brushes are ideal for applying bore cleaners, gun oil, and solvents to specific areas of your firearm. They're excellent for cleaning tight spaces in actions, receivers, and grooves where other applicators won't reach. Many gunsmiths also use them for applying protective oils before storage and for brushing away metal filings during detail work.

Why buy in bulk with a 144-pack?

At this quantity, you can place brushes at your main cleaning station, reloading bench, range bag, truck toolbox, and other frequently used locations. Since they're inexpensive and consumable, bulk buying ensures you always have a fresh brush on hand and eliminates the need to track down replacements between orders.

Is the 3/8-inch bristle width suitable for precision work?

Yes. The 3/8-inch width is narrow enough for detail application and cleaning tight spaces, yet wide enough to cover larger flat surfaces efficiently. The tapered brush design allows you to control exactly where the liquid or compound goes, making it ideal for both broad and precise applications.

What makes this style of brush a longtime shop standard?

The acid brush design has been proven in industrial and metalworking shops for decades. Durable bristles hold up to repeated use with various solvents and compounds, the handle is simple and effective, and the overall cost per brush is minimal—making it practical for high-frequency use without guilt.