Benchmark Abrasives 4-1/2 Inch Aluminum Oxide Sanding Discs, 36 Grit, 7/8-Inch Arbor, 25 Pack

Overview

Benchmark Abrasives 4-1/2 inch sanding discs are crafted to deliver efficient material removal and a refined finish across a variety of projects. Designed for use with standard angle grinders, these discs pair a sharp aluminum oxide grain with a rugged backing to maintain performance under demanding tasks on wood, fiberglass, and metal.

Key benefits

• Sharp aluminum oxide grains provide fast stock removal and a clean edge for a smoother surface.
• Heavy-duty vulcanized fiber backing with heat treated phenolic resins offers strength and extended disc life.
• Engineered to minimize loading, glazing, and grain stripping, helping discs stay productive longer between changes.
• Industrial grade construction meets stringent standards while remaining compatible with a wide range of tools and brands.
• Convenient pack of 25 discs at 36 grit supports aggressive stock removal and subsequent finishing tasks.

Applications and performance

These discs excel on tough materials and when you need rapid material removal, edge blending, or rust and paint removal. They are well suited for prep work before finishing, deburring, and shaping edges on wood, metal, and fiberglass surfaces. While results can vary by material and technique, users often find a balanced combination of speed and control with these discs.

Usage and compatibility

Use with 4-1/2 inch or 5 inch angle grinders that have a 7/8 inch arbor. The aluminum oxide grains promote sharp cuts, while the reinforced backing supports steady performance. The discs fit a broad spectrum of brands, making them a practical choice for mixed toolkits.

Tips for best results

• Match disc size to your grinder and task for optimal balance between aggressiveness and finish.
• Apply steady, even pressure and let the tool do the work to avoid overheating or glazing.
• Inspect discs regularly for wear and replace when edges start to dull or become loaded.

Designed to deliver reliable performance while helping you tackle a range of prep and finishing tasks, these sanding discs offer a practical mix of speed, durability, and versatility for professional and DIY projects alike.