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48H328 - Walter Coolcut XX 3" Spin-On Sanding Disc, 80 Grit

Packaging: 1 per each
$52.24/ea

Usually ships within 3-5 business days

SKU: 48H328 Categories: ,

OVERVIEW

High-Performance Zirconia Abrasive for Precision Finishing

The Walter Surface Technologies Coolcut XX™ Sanding Disc (SKU: 48H328) represents the pinnacle of productivity for small-diameter grinding and finishing applications. Engineered with a premium Zirconia Alumina 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.

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.

The disc utilizes Walter's proprietary Spin-On 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.

Technical Specifications

  • Abrasive Type: Zirconia Alumina
  • Grit: 80 (Medium/Fine)
  • Diameter: 3 Inches
  • Mounting: Spin-On (Type R Compatible)
  • Application: Steel, Stainless Steel, Aluminum
Additional Information
Packaging Description:1 per each, 25 per pack
Diameter:3"
Grit:80
Mounting Type:Spin-On, Type R
Abrasive Material:Zirconia Alumina
Max RPM:20000
Product Line:Coolcut XX

INCLUDED

  • (1) 3" Coolcut XX Sanding Disc, 80 Grit

APPLICATIONS

  • Blending welds in tight corners
  • Deburring machined parts
  • Surface finishing on stainless steel
  • Removing rust and paint
  • General metal fabrication and maintenance

FAQ

This disc uses the Walter Spin-On system, which is compatible with standard Type R (plastic button) quick-change backing pads.

It is suitable for use on steel, stainless steel, and aluminum.

The 48H328 is an 80 Grit sanding disc.

Yes, you need a 3-inch backing pad with a Spin-On / Type R connection. Walter offers these, but other brands' Type R pads will also work.

These are smaller (3 inch) and designed for die grinders, making them better for detailed work and tight spaces compared to larger fiber discs used on angle grinders.

The maximum safe operating speed is 20,000 RPM.

For heavy removal, a coarser grit (like 36 or 50) might be faster, but this 80 grit disc is excellent for blending and smoothing the weld after the initial grind.