3-1/4" Heavy Duty Ball Style - Brush Research

The Brush Research GBD31/4 3-1/4" Heavy Duty Ball Style Flex Hone is an essential tool for professional engine builders and mechanics. Engineered for precision, this specialized honer delivers a consistent plateau finish in engine cylinders, which is critical for achieving optimal piston ring seating and effective oil retention.

Key Features

• Optimal Surface Finish: Features a 3-1/4 inch diameter with a 180 grit abrasive, specifically designed to create the ideal cross-hatch pattern required for efficient ring break-in and sealing.
• Professional-Grade Durability: Constructed for heavy-duty use in professional shop environments, ensuring consistent performance and extended tool life.
• Self-Centering Flexibility: The flexible ball-style abrasive adapts to the cylinder bore, automatically centering itself to apply even pressure and produce a uniform, consistent finish across the entire surface.
• Effective Glaze Removal: Efficiently removes cylinder wall glaze and microscopic peaks, preparing the bore surface for new piston rings and preventing premature wear.

Applications

This professional-grade flex hone is indispensable for engine rebuilds, re-ringing procedures, and routine cylinder maintenance. It provides the crucial surface finish required for proper seating of new piston rings in both gasoline and diesel engines, contributing to improved compression, reduced oil consumption, and extended engine life. Typical applications include honing automotive engine blocks, servicing marine engines, and reconditioning cylinders in various small industrial equipment.