FLEX HONE BC23424 Cylinder Hone, 2.75" Bore, 240 Grit, Silicon Carbide

FLEX HONE BC23424 Cylinder Hone, 2.75" Bore, 240 Grit, Silicon Carbide

• The FLEX HONE BC23424 is a standard duty cylinder hone designed for bore sizes between 2.626" and 2.75", used for surface finishing, deburring, and plateau finishing in brake cylinders, wheel cylinders, hydraulic and pneumatic components, lifter bores, and valve guides. It uses 240 grit silicon carbide abrasive globules on flexible nylon filaments and measures 2.75" in diameter by 8" in overall length.
• Features:
  • 240 grit silicon carbide abrasive globules for controlled material removal.
  • Self-centering, self-aligning, self-compensating-for-wear design produces a non-directional, cross-hatched finish.
  • Flexible nylon filaments allow the abrasive globules to float, helping maintain bore alignment.
  • 3" abrasive section with a 0.245" stem, for use in rotating spindles such as drills and drill presses.
  • Also used for deburring cross-drilled holes, leaving a clean, radiused intersection.
  • Plateau finishing removes machining peaks while preserving oil-retaining valleys, helping rings and seals seat without edge damage.
  • Typically achieves a surface finish of 24-32 microinch (0.6-0.8 micrometer) Ra.
  • Recommended operating speed of 600-900 RPM, with a feed rate of 10-2,500 IPM.
  • Manufactured in the USA by Brush Research Manufacturing.
• Compatible Applications:
  • Brake Cylinders
  • Wheel Cylinders
  • Hydraulics
  • Pneumatics
  • Lifter Bores
  • Valve Guides
  • Mild Steel
  • Stainless Steel
  • Cast Iron
• Specifications:
  • Manufacturer: Brush Research Manufacturing Co., Inc.
  • Part Number: BC23424
  • Order Part Number: BSBC23424
  • Product Line: FLEX HONE BC Standard Duty (4mm-3")
  • Type: Standard Duty, Small Diameter
  • Product Type: Cylinder Hone
  • Bore Diameter: 2.75" (69.9mm)
  • Minimum Bore Diameter: 2.626"
  • Maximum Bore Diameter: 2.75"
  • Overall Length: 8"
  • Abrasive Section Length: 3"
  • Stem Diameter: 0.245"
  • Grit Size: 240
  • Abrasive Type: Silicon Carbide
  • Tip Marking: Navy Blue
  • Stem Marking: Silver/No Color
  • Recommended RPM: 600-900 RPM
  • Feed Rate: 10-2,500 IPM
  • Power Requirements: 1/6 HP to 1/4 HP
  • Surface Finish (Ra): 24-32 Microinch (0.6-0.8 Micrometer)
  • Lubrication: Required
  • Applicable Standard: ISO 9001
  • Country of Origin: USA
  • UPC: 843469124791
• This item is also often referred to as a flex hone, cylinder hone, 2.75" bore hone, 240 grit hone, plateau finishing brush, and cross-hole deburring tool.

Brush Research Manufacturing, originator of the FLEX HONE, manufactures cylinder hones, deburring tools, and surface finishing brushes for automotive, hydraulic, aerospace, marine, and general industrial applications.

Q: What bore size range is the BC23424 designed for?
A: This hone is designed for bore sizes between 2.626" and 2.75" (69.9mm).

Q: What finish does the 240 grit provide?
A: 240 grit typically produces a 24-32 microinch (0.6-0.8 micrometer) Ra finish.

Q: What is the recommended operating speed for this hone?
A: The manufacturer recommends 600-900 RPM with a feed rate of 10-2,500 IPM.

Q: What is this hone commonly used for?
A: It is commonly used for surface finishing, plateau finishing, and cross-hole deburring in brake cylinders, wheel cylinders, hydraulics, pneumatics, lifter bores, and valve guides.