FLEX HONE GB31424 Cylinder Hone, 3.25" Bore, 240 Grit, Silicon Carbide

FLEX HONE GB31424 Cylinder Hone, 3.25" Bore, 240 Grit, Silicon Carbide

• The FLEX HONE GB31424 is a standard duty cylinder hone designed for bore sizes between 3.001" and 3.25", used for finishing, deburring, and edge breaking in automotive, hydraulic, and industrial cylinders. It uses 240 grit silicon carbide abrasive globules on flexible nylon filaments and measures 3.25" in diameter by 13.5" 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.
  • 3.5" abrasive section with a 0.31" stem, for use in rotating spindles such as drills and drill presses.
  • 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:
  • Mild Steel
  • Stainless Steel
  • Cast Iron
  • Other Softer Ferrous Materials
• Specifications:
  • Manufacturer: Brush Research Manufacturing Co., Inc.
  • Part Number: GB31424
  • Product Line: FLEX HONE GB Standard Duty (3-1/4"-4-5/8")
  • Product Type: Cylinder Hone
  • Bore Diameter: 3.25" (83mm)
  • Minimum Bore Diameter: 3.001"
  • Maximum Bore Diameter: 3.25"
  • Overall Length: 13.5"
  • Abrasive Section Length: 3.5"
  • Stem Diameter: 0.31"
  • 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: 1/4 HP to 1/3 HP
  • Surface Finish (Ra): 24-32 Microinch (0.6-0.8 Micrometer)
  • Lubrication: Required
  • Country of Origin: USA
  • UPC: 843469143396
• This item is also often referred to as a 3.25" bore hone, GB31424 flex hone, silicon carbide cylinder hone, plateau honing brush, and medium grit bore 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 diameter is this hone designed for?
A: This hone is designed for bore sizes between 3.001" and 3.25" (83mm).

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 materials is this hone suited for?
A: This hone is suited for mild steel, stainless steel, cast iron, and other softer ferrous materials.