Brush Research BC11412 Flex-Hone 1-1/4" Bore 120 Grit Boron Carbide

The Brush Research BC11412 Flex-Hone is a specialized cylinder honing tool designed for precision surface finishing and deburring applications. This 1-1/4" (31.8mm) bore diameter hone features 120 grit silicon carbide abrasive globules permanently bonded to flexible nylon filaments, creating the signature self-centering, self-aligning action that makes Flex-Hone tools effective for even difficult-to-reach areas.

Key Features:

• Boron carbide abrasive for superior cutting performance and durability
• 120 grit silicon carbide provides medium surface finish ideal for hydraulic and pneumatic applications
• Flexible construction allows tool to follow bore geometry and reach cross-holes
• Self-centering design eliminates need for specialized fixtures or alignment
• Low-pressure honing action prevents stock removal and maintains bore tolerances

Applications:

• Brake cylinder surface finishing and deglazing
• Wheel cylinder reconditioning
• Hydraulic and pneumatic cylinder preparation
• Valve guide finishing
• Cross-hole deburring and edge breaking

The Flex-Hone's patented flexible design produces a controlled surface finish while removing minor imperfections, glazing, and burrs. Unlike rigid hones, the flexible filaments conform to the bore surface and effectively deburr cross-drilled holes without over-cutting. This tool is ideal for automotive technicians, hydraulic repair shops, and machine shops requiring consistent, repeatable surface finishes in precision bores.