Brush Research GBD41218 Flex-Hone Engine Cylinder Honing Tool 4-1/2 Inch 180 Grit

The Brush Research Flex-Hone is a flexible engine cylinder honing tool designed to produce a superior surface finish unobtainable by conventional rigid hones. This 4-1/2 inch diameter tool features 180 grit abrasive globules that create the ideal crosshatch pattern for optimal oil retention and ring seating.

Key Features:

• Self-centering, self-aligning design with flexible construction for consistent bore geometry
• Independent abrasive globule suspension provides soft cutting action and compensates for wear
• Low-temperature abrading process preserves base metal structure for superior durability
• Creates controlled crosshatch pattern with multiple oil retention valleys
• Produces plateau finish free of torn, folded, or fragmented metal
• Radiused port edges prevent ring damage and improve sealing
• 180 grit specification ideal for final finishing operations

The Flex-Hone process delivers a metallurgically clean surface by removing damaged metal from previous machining operations while maintaining the integrity of the base material. The unique crosshatch pattern ensures proper oil distribution and retention throughout the engine's service life, resulting in reduced wear and improved performance compared to conventional honing methods.