The Walter Surface Technologies Coolcut XX\u2122 Sanding Disc (SKU: 48H328)<\/strong> represents the pinnacle of productivity for small-diameter grinding and finishing applications. Engineered with a premium Zirconia Alumina<\/strong> grain structure, this 3-inch disc is designed to deliver an exceptionally high removal rate while maintaining the structural integrity of the abrasive grains over an extended lifespan. The 80-grit composition makes it an ideal choice for intermediate finishing, blending welds, and removing moderate imperfections without gouging the base material.<\/p>\n One of the defining technical characteristics of the Coolcut XX series is its ability to mitigate thermal transfer. Excessive heat during grinding can lead to work-hardening or discoloration (bluing) of stainless steel and other heat-sensitive alloys. Walter has formulated these discs with active cooling agents that lubricate the cutting surface, ensuring a cooler cut even under heavy pressure. This feature is critical for MRO professionals and fabricators working on high-value components where surface integrity is paramount.<\/p>\n The disc utilizes Walter’s proprietary Spin-On<\/strong> mounting system, which is mechanically compatible with industry-standard Type R (plastic button) backing pads. This quick-change mechanism allows operators to switch between grits or product types in seconds, significantly reducing downtime during multi-step finishing processes. Rated for a maximum speed of 20,000 RPM, the 48H328 is optimized for use with high-speed die grinders, providing stable and vibration-free operation that reduces operator fatigue.<\/p>\nTechnical Specifications<\/h3>\n
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