Bosch Random Orbit Sanding Disc Set SR5R240 5 Inch 240 Grit (5 Piece Hook-and-Loop 8-Hole Aluminum Oxide Extra-Fine Wood Finishing)

Only 1 left
SKU: SR5R240
Regular price $4.99 USD

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Industrial 240-Grit Aluminum Oxide Abrasive Discs for Swirl-Free Extra-Fine Wood Surface Finishing

The Bosch SR5R240 5-Piece 240 Grit 5-Inch Sanding Disc Set delivers professional-grade mechanical surface smoothing when executing extra-fine preparation cycles on natural woods and structural composite workpieces. Engineered with premium open-coat aluminum oxide crystals and a robust resin bond matrix, these industrial abrasive wheels maintain uniform material removal metrics while preventing premature grain fracturing. The anti-static composite backing structure reduces airborne particulate friction to prevent dust accumulation on the sanding surface, optimizing extraction workflows through a standard 8-hole vacuum orientation. Universally compatible with 5-inch random orbit sanders utilizing a hook-and-loop interface, this high-performance finishing accessory ensures stable orbital tracking to eliminate localized burning during final pre-stain passes.

Best Used For:

  • Pre-Stain Surface Preparation: Flattening fine wood fibers on solid hardwood or soft wood furniture stock to secure uniform absorption of stains and sealers.
  • Cabinet Face Veneer Smoothing: Polishing delicate wood veneers, plywood layers, and architectural trim assemblies without scoring or burning the base workpiece.
  • Inter-Coat Finish Scuffing: Leveling minor surface imperfections between topcoat, lacquer, or polyurethane lacquer applications to guarantee maximum secondary layer adhesion.

Key Performance & Safety Features

  • Open-Coat Aluminum Oxide: Spaced abrasive crystal pattern provides clearing paths to resist pitch loading, extending tool lifespan over standard tightly packed papers.
  • Industrial Resin Bond Layer: Hardened resin matrix anchors individual cutting minerals rigidly onto the substrate core, resisting heat deterioration at high orbital rates.
  • Standard 8-Hole Vacuum Porting: Pre-punched dust extraction holes channel ambient waste directly into extraction vacuums, securing clean workspace margins.
  • Universal Hook-and-Loop Interface: Interlocking fiber loops adhere firmly to dynamic backing pads, allowing immediate disc changeovers and resisting lateral slippage.
  • Anti-Static Structural Backing: Advanced paper design neutralizes structural electrical charges to stop fine dust particles from clinging to the wheel matrix.

What's Included

  • (5) Bosch SR5R240 5-Inch 240 Grit 8-Hole Hook-and-Loop Sanding Discs

Technical Specifications

Specification Value
Brand Bosch
Model Number SR5R240
Disc Diameter 5.0 in
Abrasive Grit Rating 240 Grit (Extra-Fine)
Attachment System Hook and Loop
Extraction Hole Layout 8-Hole Pattern
Abrasive Mineral Core Aluminum Oxide
Bonding Type Resin Bonded
Coating Configuration Open Coat
Primary Substrate Focus Natural Lumber, Wood Composites
Package Quantity 5 Sanding Discs

Pro-Tip: Before pressing a fresh 240-grit disc to your sander pad, align the 8 vacuum holes exactly with the pad extraction vents. Keep the orbit sander tracking flat over the panel surface under its own localized weight, as external hand downward pressure creates friction heat loops that lead to grain loading and micro-swirl tracking anomalies.