The BRM GBD60012 Flex-Hone® is a professional-grade 5-1/2 inch to 6 inch bore surface finishing tool featuring 120-grit Silicon Carbide (120SC) abrasive. Designed for precision cylinder conditioning, this Flex-Hone is ideal for engine cylinder deglazing, plateau honing, and surface preparation prior to piston ring installation in gasoline and diesel engines.
Unlike rigid honing stones, the Flex-Hone’s patented flexible abrasive globules conform to the bore geometry, maintaining true bore alignment while producing a consistent crosshatch finish. This controlled surface texture is critical for proper piston ring seating, oil retention, and reduced break-in time. The 120SC abrasive provides an excellent balance between material removal and surface refinement, making it well suited for cast iron and steel cylinder walls commonly found in heavy-duty and performance engines.
The GBD60012 is trusted by professional engine builders, machine shops, and fleet maintenance facilities for both new builds and reconditioning work. It is designed for use with low-speed drills and should be used with appropriate honing oil for best results and extended tool life.
Key Features & Benefits
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Bore Size Range: 5-1/2" to 6" diameter.
-
Abrasive Type: 120-grit Silicon Carbide (120SC).
-
Produces a uniform, controlled crosshatch finish for optimal ring seating.
-
Ideal for deglazing, plateau honing, and surface conditioning.
-
Flexible globule design conforms to bore geometry without tapering or out-of-round issues.
-
Suitable for cast iron and steel cylinder liners and blocks.
-
Reduces piston ring break-in time and improves oil control.
-
Trusted BRM Flex-Hone® quality for professional engine service.
Applications
-
Engine cylinder deglazing and surface finishing
-
Piston ring replacement and engine rebuilds
-
Automotive, heavy-duty diesel, industrial, and performance engines
-
Machine shops, engine builders, and fleet maintenance facilities
While these go by many names dingleberry hone, dingle ball hone; ball
hone, flexhone and dingleberry brush Flex-Hone is the correct name.
The BRM GBD60012 Flex-Hone® is a professional-grade 5-1/2 inch to 6 inch bore surface finishing tool featuring 120-grit Silicon Carbide (120SC) abrasive. Designed for precision cylinder conditioning, this Flex-Hone is ideal for engine cylinder deglazing, plateau honing, and surface preparation prior to piston ring installation in gasoline and diesel engines.
Unlike rigid honing stones, the Flex-Hone’s patented flexible abrasive globules conform to the bore geometry, maintaining true bore alignment while producing a consistent crosshatch finish. This controlled surface texture is critical for proper piston ring seating, oil retention, and reduced break-in time. The 120SC abrasive provides an excellent balance between material removal and surface refinement, making it well suited for cast iron and steel cylinder walls commonly found in heavy-duty and performance engines.
The GBD60012 is trusted by professional engine builders, machine shops, and fleet maintenance facilities for both new builds and reconditioning work. It is designed for use with low-speed drills and should be used with appropriate honing oil for best results and extended tool life.
Key Features & Benefits
-
Bore Size Range: 5-1/2" to 6" diameter.
-
Abrasive Type: 120-grit Silicon Carbide (120SC).
-
Produces a uniform, controlled crosshatch finish for optimal ring seating.
-
Ideal for deglazing, plateau honing, and surface conditioning.
-
Flexible globule design conforms to bore geometry without tapering or out-of-round issues.
-
Suitable for cast iron and steel cylinder liners and blocks.
-
Reduces piston ring break-in time and improves oil control.
-
Trusted BRM Flex-Hone® quality for professional engine service.
Applications
-
Engine cylinder deglazing and surface finishing
-
Piston ring replacement and engine rebuilds
-
Automotive, heavy-duty diesel, industrial, and performance engines
-
Machine shops, engine builders, and fleet maintenance facilities
