FLEX HONE BC27824 Cylinder Hone, 2.875" Bore, 240 Grit, Silicon Carbide

FLEX HONE BC27824 Cylinder Hone, 2.875" Bore, 240 Grit, Silicon Carbide

• The FLEX HONE BC27824 is a standard duty cylinder hone designed for bore sizes between 2.751" and 2.875" (73mm), used for surface finishing, deglazing, and crosshatch generation. It uses 240 grit silicon carbide abrasive globules on flexible nylon filaments and measures 2.875" in diameter by 8" in overall length.
• Features:
  • 240 grit silicon carbide abrasive globules suitable for mild honing, surface finishing, and glaze removal.
  • Self-centering, self-aligning, self-compensating-for-wear design supports even contact throughout the bore.
  • Flexible construction conforms to cylinder walls, including slightly tapered or irregular bores.
  • 3" abrasive section with a 0.245" stem, for use in rotating spindles such as drills and drill presses.
  • Creates a crosshatched plateau finish that supports lubrication retention and piston ring seating.
  • 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:
  • Engine Cylinder Deglazing
  • Crosshatch Surface Finishing
  • Piston Ring Seating Surface Preparation
  • Mild Cylinder Honing and Maintenance
  • Mild Steel
  • Stainless Steel
  • Cast Iron
• Specifications:
  • Manufacturer: Brush Research Manufacturing Co., Inc.
  • Part Number: BC27824
  • Order Part Number: BSBC27824
  • Product Line: FLEX HONE BC Standard Duty (4mm-3")
  • Product Type: Flexible Cylinder Hone
  • Bore Diameter: 2.875" (73mm)
  • Minimum Bore Diameter: 2.751"
  • Maximum Bore Diameter: 2.875"
  • 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
  • Country of Origin: USA
  • UPC: 843469126092
• This item is also often referred to as a 2.875" cylinder hone, 73mm engine hone, 240-grit flex hone, silicon carbide cylinder brush, and engine cylinder deglazing 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 is the FLEX HONE BC27824 designed for?
A: It is designed for bore sizes between 2.751" and 2.875" (73mm).

Q: What finish does the 240 grit provide?
A: 240 grit typically produces a 24-32 microinch (0.6-0.8 micrometer) Ra finish, suitable for mild honing and glaze removal.

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: Does the FLEX-HONE require manual centering inside the bore?
A: No, the tool has a flexible, self-centering, and self-aligning design that maintains consistent contact with the cylinder wall during use.