15C458V - Walter Coolcut 4-1/2" Fibre Discs 80 Grit (5-Pack)

Premium General Purpose Sanding for Steel

The Walter Coolcut 4-1/2" Sanding Disc (SKU: 15C458V) represents the standard of quality for general-purpose metalworking abrasives. Designed by Walter Surface Technologies, a leader in industrial surface treatment, these discs are engineered to deliver consistent performance across a wide range of applications. This specific package contains 5 discs, making it an ideal choice for smaller workshops, tool cribs, or vending machine restocking where bulk quantities are not required.

At the core of the Coolcut disc is a premium aluminum oxide grain. Unlike standard consumer-grade abrasives, Walter utilizes a sophisticated electrostatic application method. This process orients each abrasive grain vertically on the backing, exposing the sharpest cutting edges to the workpiece. The result is a disc that cuts faster and lasts longer, providing a superior removal rate compared to conventional sanding discs. The 80 grit rating makes this disc an excellent intermediate option—aggressive enough to remove light welds and surface imperfections, yet fine enough to prepare surfaces for painting or further finishing steps.

Heat management is critical in metal fabrication, and the Coolcut line lives up to its name. The discs are designed to cut cool, minimizing the risk of thermal distortion or blueing on steel surfaces. This is particularly important when working on thinner gauge metals where heat buildup can compromise structural integrity. The high-quality fibre backing provides the necessary rigidity for grinding while allowing enough flexibility to contour slightly to the workpiece, ensuring a smooth and even finish.

These discs are specifically formulated for use on steel. Whether you are removing rust, blending welds, or simply cleaning up a fabrication project, the Walter Coolcut 15C458V offers reliable, professional-grade results. Pair these discs with a suitable backing pad on your angle grinder to experience the difference in quality and efficiency that Walter abrasives bring to the table.