FLEX-HONE GBD50024 Cylinder Hone, 5 Inch Bore, 240 Grit, Silicon Carbide

• The Brush Research GBD50024 Flex-Hone is a heavy-duty cylinder honing tool designed for 5" bore diameter applications. Featuring 6" of abrasive section with 240 grit silicon carbide, it delivers a plateau-style cross-hatch finish ideal for enhancing lubrication retention, reducing leakage, and preparing sealing surfaces in engine blocks, hydraulic cylinders, and industrial bores.
• Features:
  • Bead-style, flexible filament construction with self-centering, self-aligning, and self-compensating action
  • 240 grit silicon carbide abrasive balances peak removal with oil-valley preservation
  • Non-directional plateau cross-hatch pattern enhances seal integrity and fluid retention
  • Heavy-duty design suited for large-diameter bores in engine and industrial applications
• Specifications:
  • Bore Diameter: 5"
  • Abrasive Material: Silicon Carbide
  • Grit: 240 (Medium)
  • Abrasive Length: 6"
  • Overall Length: 17-1/2"
  • Stem Diameter: 0.35"
  • Recommended Speed: up to 600 RPM
  • Typical Surface Finish: 24–32 µin Ra
  • Applications: Engine cylinder liners, hydraulic bores, industrial piping
• The FLEX-HONE GBD50024 can also be referred to as 5" bore hone, GBD50024 flex hone, silicon carbide cylinder hone, plateau finishing brush, and medium grit bore tool.

 

Brush Research’s GBD-Series Flex-Hones are trusted in automotive, hydraulic, and industrial sectors for delivering reliable plateau-style finishes in large-bore applications.

 

Q: What bore diameter is this hone designed for?
A: The GBD50024 is engineered specifically for use in 5" bore diameter cylinders.

 

Q: What finish quality does the 240 grit provide?
A: It creates a medium plateau finish around 24–32 µin Ra, ideal for sealing surfaces and oil control.

 

Q: Can I use this hone with a handheld drill?
A: Yes—as long as you maintain up to 600 RPM and use oil-based honing lubricant.

 

Q: What materials is this hone suitable for?
A: Effective on cast iron, mild steel, stainless steel, and other ferrous materials commonly used in engine and hydraulic bores.

 

Q: What lubricant should I use?
A: Use oil-based honing lubricant to preserve the abrasive bond and ensure consistent finish quality.