4-1/8" Heavy Duty Ball Style - Brush Research

The Brush Research GB41/8 4-1/8" Heavy Duty Ball Style Flex Hone is engineered for professional automotive and industrial applications, providing a superior surface finish on cylinder walls. This robust tool effectively deglazes, hones, and cross-hatches cylinder bores, preparing them for optimal ring seating and oil retention. Designed for precision and durability, it ensures consistent, high-quality results for demanding engine rebuilding and maintenance tasks.

Key Features

• Heavy-Duty Construction: Built for sustained use in professional environments, offering extended tool life and reliability.
• 4-1/8" Diameter with 180 Grit Abrasive: Precisely sized for 4-1/8" bores, featuring a 180 grit abrasive for effective deglazing and surface conditioning, creating an ideal plateau finish.
• Self-Centering Flexible Shaft: The flexible drive shaft ensures the abrasive balls conform to the bore, providing a consistent and uniform finish even in slightly worn or tapered cylinders.
• Ball-Style Abrasive: Unique ball-style design allows the hone to be self-aligning, self-centering, and self-compensating for wear, ensuring full contact with the cylinder wall throughout the honing process.
• Professional-Grade Durability: Constructed with high-quality materials to withstand the rigors of frequent use in workshops and industrial settings.

Applications

This heavy-duty flex hone is an essential tool for professional technicians and mechanics working on a variety of engine and cylinder applications. It is ideal for honing gasoline and diesel engine cylinders in automotive, marine, and heavy equipment sectors. Common uses include deglazing cylinder walls during engine rebuilds to restore proper cross-hatch patterns, preparing brake master and wheel cylinders, and finishing hydraulic cylinders to improve sealing and performance.