08L702 - Walter ALU 7-Inch Aluminum Grinding and Cutting Wheel Type 27

High-Performance Abrasive for Non-Ferrous Metals

The Walter 08L702 ALU Grinding Wheel is a specialized abrasive solution engineered specifically for the challenges of working with aluminum and other soft, non-ferrous metals. Standard grinding wheels often fail when applied to aluminum because the friction heat causes the soft metal to melt and adhere to the abrasive grains, a process known as "loading" or "clogging." Once a wheel is loaded, it stops cutting effectively and begins to generate excessive heat, which can damage the workpiece. The Walter ALU line utilizes a unique formulation that resists this loading, ensuring the grain remains open and sharp for consistent material removal.

Measuring 7 inches in diameter with a 1/8-inch thickness and a standard 7/8-inch arbor, this Type 27 depressed center wheel is versatile enough to handle multiple operations. The 1/8-inch profile places it in a "combo" category, providing the structural integrity needed for light grinding and root pass cleaning, while still being thin enough to perform fast cuts. This dual capability makes it an excellent choice for pipeline work, fabrication, and repair where switching between a cutting wheel and a grinding disc is inefficient.

A critical technical advantage of the Walter ALU wheel is its purity. Many lubricants or additives used to prevent clogging in other wheels can leave a residue on the metal surface. This residue creates porosity and inclusions if welded over without thorough cleaning. Walter has formulated this wheel to be completely free of waxes and lubricants. This means operators can grind or cut aluminum and immediately proceed to welding without an intermediate chemical cleaning step, significantly streamlining the workflow in industrial environments.

Designed for use with 7-inch angle grinders, this wheel is rated for a maximum speed of 8,600 RPM. It features an A24 grit rating, providing a coarse, aggressive cut suitable for rapid stock removal. Whether used for beveling, notching, or parting, the 08L702 delivers industrial-grade performance and longevity.