Tube Brushes for Through Holes, Blind Holes, and Light to Heavy Deburring

Brush Research Manufacturing (BRM) is best-known for its Flex-Hone® tool, NamPower family of nylon abrasive brushes, and high-quality diesel and automotive brushes. Since 1958, our American-owned company has been solving difficult surface finishing challenges with brush technology. But did you know that BRM’s line of industrial brushes includes many different types of nylon abrasive brushes, including tube brushes? How can you tell if tube brush technology is right for your application?

What are Tube Brushes?

Tube brushes are twisted-in-wire filament brushes that mount in handheld power tools, in CNC machining centers as well as used by hand. Versatile, reliable, and available for a range of bore sizes, these industrial brushes are made with various filament materials ranging from abrasive-filled nylon to stainless steel, carbon steel, nylon, brass and even natural bristle to provide superior cutting and cleaning action. In addition to light deburring, applications for BRM tube brushes include internal hole-cleaning, the removal of small surface imperfections, surface preparation, micro-burr removal, and edge blending. 

Nylon Abrasive Filaments

Safe and non-reactive, BRM tube brushes offer an excellent alternative to traditional steel filament brushes. Our twisted-in-wire abrasive nylon brushes are available in three different styles or series, and in various abrasive types and grits. When ordering tube brushes, specify the brush diameter, stem diameter, and overall length (OAL) as well as the hole diameter or bore size. Choices for abrasive and grit vary by tube brush type, but generally include aluminum oxide (AO) and silicon carbide (SC).

Miniature Deburring Tools for Through Holes

BRM Series 81AY tube brushes are miniature brush tools for deburring through holes (thru holes), openings that are drilled, milled or otherwise machined to penetrate a substrate completely. Bore sizes for Series 81AY tube brushes range from 0.032-in. to 0.50-in. and from 1-mm to 6.5 mm. In addition to 500 AO and 600 AO miniature deburring tools, buyers can choose mini tube brushes that use diamond or silicate (SIL) abrasives. With SC and AO brush tools, grit choices range from 80 to 600.

Standard Duty Deburring Tools for Blind Holes and Bottom Ends

BRM Series 85AY tube brushes are standard-duty deburring tools for bottom ends and blind holes, openings that are drilled, milled or otherwise machined, but that do not penetrate a substrate completely. Bore sizes for Series 85AY brush tools range from 0.125-in. to 0.937-in. In addition to 320, 500, and 600 AO stocked abrasives, Series 85AY tube brushes are available in diamond. With AO and SC brushing tools, choices range from 80 to 600 grit.   

Heavy Duty Deburring Tools for Edge Blending and Metal Finishing

BRM Series 90AY tube brushes are heavy-duty deburring tools that are made with a galvanized steel stem wire and a rigid double stem / double spiral design.  Bore sizes for these brushing tools range from 0.750-in. to 3.500-in. Stocked abrasives include 320 AO and 530 AO, but other AO nylon filaments are available by special order. Tube brush users can also request products that use SC or SIL abrasives.

For more information, including how to order these and other nylon abrasive brushes, visit the BRM website.