3" Quick Change Discs For Aluminum - 25 Pack

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Product Specification

3" QUICK CHANGE DISCS FOR ALUMINUM - 25 PACK

Benchmark Abrasives 3-inch quick-change sanding disc for aluminum is designed for fast grinding, blending, deburring, and surface preparation on aluminum and other soft, non-ferrous metals. Its premium abrasive grain delivers an aggressive, consistent cut while the specialized stearate coating helps prevent loading and material buildup.

Unlike standard sanding discs that can quickly clog when used on aluminum, the stearate treatment liquefies slightly as heat develops during sanding. This creates a protective barrier over the abrasive surface, helping prevent aluminum particles from sticking to the disc. The result is a cleaner cut, longer disc life, and less downtime spent replacing clogged abrasives.

The compact 3-inch size provides excellent control when working in tight spaces, around curves, inside corners, and on smaller components. The quick-change attachment allows operators to switch discs in seconds without tools, making it ideal for fabrication shops, automotive work, maintenance operations, and production environments.

Quantity: 25 pieces (Mixed grit packs are 20 pieces)

Use in combination with our 3” Quick Change Rubber Mandrel

**Mandrel sold separately**

Dimensions

• Outer Diameter – 3”
• Shank Diameter – R-Type quick change connection
• Backing Material – X-weight Cloth
• Grain – Aluminum Oxide (AO) with stearate Coating
• Available Grits – 36, 60
• Max RPM – 25,000

Key Features:

• Designed specifically for aluminum and other soft metals
• Stearate coating helps resist loading, clogging, and gumming
• Delivers fast stock removal and consistent surface finishes
• Quick-change backing allows fast, tool-free disc replacement
• Compact 2-inch diameter provides greater control in tight areas
• Helps reduce heat buildup and extend abrasive life
• Suitable for grinding, deburring, blending, and surface preparation

Machines Used On:

• Die Grinders and hand-held pneumatic grinders

Application:

• Non-Ferrous Materials – Aluminum, Zinc, Copper, Tin
• Other Materials – Fiberglass, Plastic, Hard Rubber, Wood, Stone
• Removing welds and weld discoloration
• Deburring cut or machined aluminum edges
• Blending surface imperfections
• Removing oxidation and minor corrosion
• Preparing aluminum surfaces for painting or coating
• Smoothing castings and fabricated components
• Cleaning up scratches, blemishes, and tool marks
• Dry use ONLY

Safety Tips & Techniques:

• Product requires a 3” Type R quick change backing pad to be used
• Always wear proper PPE to include (but not limited to) safety glasses, hearing protection, respirator, and hand protection. Keep all guards in place on your machine.