3-3/4″ to 3-1/2″ (95mm) Heavy Duty Flex Hone BRMGBD334

Description

Product Description

A flexible ball-hone tool designed for restoring cross-hatch finish in engine cylinder bores after boring or honing. Available in Standard Duty (GB) and Heavy Duty (GBD) configurations with a larger abrasive area. Ideal for engine machine shops and rebuilders.

Key Features:

• Restores proper cross-hatch finish for correct ring seating after boring or honing
• Heavy Duty (GBD) versions offer a larger abrasive area than Standard Duty (GB) for faster stock removal
• 13-1/2″ overall length reaches full engine cylinder bore depth
• Flexible shaft self-centers in the bore for even, consistent finishing
• Covers engine bore sizes from 3-1/4″ through 4-1/2″ across both duty levels
• Reduces oil consumption and blow-by by properly finishing the ring-seating surface
• Used industry-wide as the standard method for engine cylinder bore finishing

Technical Specifications:

Materials & Construction:

Abrasive globules are permanently bonded to flexible steel filaments; Heavy Duty (GBD) models carry a larger abrasive surface area for faster material removal on demanding rebuild work.

Use Cases:

• Engine machine shops finishing cylinder bores after boring
• Engine rebuilders restoring proper cross-hatch for ring seating

Included Items:

• (1) Flex-Hone tool in the selected bore size and duty level

Compatibility:

Used with a standard hand drill; sized specifically to the bore diameter selected.

Brush Research Manufacturing is the original inventor of the Flex-Hone and remains the industry-standard name in flexible cylinder honing tools trusted across automotive and industrial rebuilding.