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15C512 - Walter COOLCUT 5-Inch 120 Grit Aluminum Oxide Fibre Disc

Packaging: 25 per each
$1.70/ea $26.50/25 per each only $1.06/eaSave 38%

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SKU: 15C512 Categories: ,

OVERVIEW

Industrial Grade General Purpose Sanding Disc

The Walter Surface Technologies 15C512 COOLCUT™ Sanding Disc is a premium abrasive solution designed for industrial environments requiring reliable, general-purpose metal finishing. Engineered with high-quality aluminum oxide grains, this 5-inch fibre disc is specifically formulated to deliver consistent material removal rates on steel surfaces. The manufacturing process utilizes advanced electrostatic grain distribution technology, which orients the abrasive particles for maximum sharpness and uniformity. This ensures that the disc provides a predictable finish from the first pass to the last, reducing the need for rework and increasing overall shop productivity.

A key feature of the COOLCUT line is its thermal management capability. The disc incorporates specialized active fillers and cooling agents within the resin bond. These additives significantly lower the grinding temperature, preventing heat accumulation that can lead to workpiece warping or blue discoloration (heat tint). This makes the 15C512 particularly effective for applications where preserving the metallurgical integrity of the surface is a priority. The 120 grit specification places this disc in the fine finishing category, making it an excellent choice for preparing surfaces for painting, coating, or final polishing steps.

Durability is ensured through a robust vulcanized fibre backing that withstands the high centrifugal forces of angle grinders running at speeds up to 12,200 RPM. This tough backing provides the necessary rigidity for effective pressure application while maintaining enough flexibility to contour slightly to the workpiece. For procurement managers and tool crib supervisors, the Walter 15C512 represents a cost-effective consumable that balances longevity with performance, minimizing downtime associated with frequent disc changes.

This product requires a compatible backing pad for operation. It is designed to mount securely on standard 5-inch angle grinders with a 7/8-inch arbor. Whether used for light weld blending, rust removal, or surface conditioning, the COOLCUT sanding disc delivers professional results synonymous with the Walter brand.

Additional Information
Brand:Walter Surface Technologies
Diameter:5 in
Grit:120
Arbor (in):7/8"
Used To Sand:Steel
Packaging Description:25 per each
Material:Aluminum Oxide
Backing Type:Fibre
Max RPM:12200
Product Line:COOLCUT

INCLUDED

  • 1 x Walter Coolcut 5-inch Sanding Disc (120 Grit)

APPLICATIONS

  • General purpose sanding on steel and ferrous metals
  • Light weld removal and blending
  • Surface cleaning and rust removal
  • Preparing metal surfaces for painting or coating
  • Removing mill scale and oxidation
  • Deburring and edge breaking
  • Finishing automotive body panels

FAQ

Yes, fibre sanding discs like the 15C512 require a hard or semi-flexible backing pad (typically rubber or plastic) to support the disc on the angle grinder.

120 grit is a fine abrasive grade, ideal for surface cleaning, light blending, and preparing surfaces for paint or powder coating. It is not designed for heavy stock removal.

While it can physically cut stainless steel, the COOLCUT line is optimized for general purpose steel. For stainless steel, Walter recommends their TOPCUT or COOLCUT XX lines which are specifically formulated to prevent contamination and handle the harder material.

The maximum safe operating speed for this 5-inch disc is 12,200 RPM. Always ensure your grinder does not exceed this rating.

Coolcut refers to the specialized additives in the resin bond that reduce friction and heat buildup, preventing the workpiece from overheating or discoloring.

Fibre discs are sensitive to humidity. They should be stored in a dry, climate-controlled environment, ideally between 30-50% relative humidity, to prevent curling or brittleness.

This disc features a standard 7/8-inch center hole (arbor), compatible with most standard 4.5-inch and 5-inch angle grinders.

CATALOGUE & SPEC SHEETS

Safety Data Sheet