Brush Research Debuts New 3D Graphic, Flex-Hone Video

Share Article

Video shows how and why the flexible ball-style honing tool excels for metal finishing, deburring, edge-blending, and adhesive bonding applications.

For metal finishing, deburring, and edge-blending applications, the patented Flex-HoneÒ, flexible ball-style honing tool is hard to beat. Now a new 3D graphic video by Brush Research Manufacturing, a leader in metal finishing brush technology since 1958, shows why the flexible hone has become the "go to" metal surface finishing tool, whether for full-scale automated production or for hand drill use by home hobbyists.

Produced with cutting edge computer graphics, the video demonstrates the usage and benefits of Brush Research Manufacturing's proprietary Flex-Hone tool, along with insight into the many potential applications for the product. The video graphically demonstrates with 3D animation why no other honing tool can as easily, quickly and affordably create the microstructure finish necessary to maximize performance and extend the life of parts and products.

Brush Research Manufacturing has been in the business of solving difficult finishing problems with abrasive technology since 1958. However, it was the introduction of the Flex-Hone tool in 1972 that is considered the company's crowning achievement.

The patented and proprietary Flex-Hone is a resilient, flexible, honing tool with a soft cutting action. The abrasive globules are bonded to the ends of flexible nylon filaments. Each have independent suspension that assures the Flex-Hone to be self-centering, self-aligning to the bore and self-compensating for wear.

With the vast array of sizes and abrasives and Brush Research's ability to custom manufacture these flexible honing tools, the applications are virtually unlimited.

The video, in part, is designed to illustrate the myriad of possibilities for the product in automotive, defense, agriculture, transport, and commercial industries for applications ranging from gas, diesel, aircraft, and marine engines; to pneumatic and hydraulic cylinders; to rail, farm and land equipment; to firearms, musical instruments, and golf club re-shafting.

In the automotive industry, for example, the surface profile readout of a conventionally honed engine cylinder can indicate a finish with many sharp ridges and severely torn and folded metal. After only seconds of applying the flexible hone, an ideal surface wall with 20% to 40% valleys for oil retention enables immediate piston ring seating. The cross-hatched surface provides the desired lubrication distribution, control and retention, assuring a long-lasting, long-wearing surface.

For hydraulic cylinder applications, where tight tolerances in surface finish are crucial for sealing, the flexible hone can remove the peaks produced by prior machining to produce a nearly flat "plateau finish" while retaining the valleys for oil retention.

Where deburring of cross-drilled holes can be expensive and time-consuming, the flexible hone makes it easy to remove burrs from cross-drilled holes, leaving a clean, radiused intersection.

The Flex-Hone is available in miniature sizes as small as 4 mm. (0.156 in.) and as large as 36 in. for large bore cylinders or pipes.

To view the new video, visit

Brush Research Manufacturing, an ISO 9001:2008 certified company, is a full line manufacturer of industrial brushes including wheel, end, cup, encapsulated, copper center, mandrel mounted. Twisted-in-wire brushes are also manufactured for thread cleaning, cross hole deburring, tube, and flue applications. Custom honing tool and miniature deburring brush solutions are available.

Heather Fowlie
Director of Marketing
Brush Research Manufacturing Co., Inc.
4642 Floral Drive, Los Angeles, CA 90022
Phone: (323) 261-2193 X 710
Fax: (323) 268-6587
Email: HFowlie @


Share article on social media or email:

View article via:

Pdf Print

Contact Author


Email >