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GBD40024 FLEX-HONE, 4" Diameter, 240 Grit for metal finishing

Flex-Hone ★ 3.7/5 · ItemOracle Score Mid-Range

$90 USD
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Brush Research GBD40024 FLEX-HONE, 4" (101mm) Diameter, 240 Grit, Silicon Carbide, For Mild Steel, Stainless Steel Cast Iron and Softer Ferrous Materials

Flex-Hone tool, 4" diameter, 240 grit silicon carbide for mild steel, stainless steel, cast iron and softer ferrous materials. Self-centering design with crosshatch finish benefits; ideal for rebuilding cylinders and valve guides

Highlights

  • self-centering, self-aligning design
  • crosshatch finish for precision
  • wide grit availability for finishing control

Pros

  • oversized, self-centering design
  • wide grit range for finishing tolerances
  • effective crosshatch finish
  • easy to use for engine rebuilds
  • built in the USA

Cons

  • fits within 4" diameter scope
  • specific to ferrous materials
  • requires appropriate cylinder compatibility

Best For

  • rebuilding hydraulic and pneumatic cylinders
  • engine cylinder finishing
  • valve guide finishing
  • brake cylinder finishing
  • stainless and cast iron component finishing
  • general surface finishing in metalworking

Features

  • Made in the USA with consistent quality from the tool's inventors and makers
  • Oversized FLEX-HONE design self-centers and self-compensates for wear for easy use
  • Available in multiple grits to achieve specific finishing tolerances and crosshatch patterns
  • Suitable for rebuilding hydraulic/pneumatic cylinders, engine and brake cylinders, valve guides, pumps, and more
  • Supports deburring and finishing in a single setup across hand drills, drill presses, or CNC equipment

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