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Walter Coolcut 5-Inch Fibre Sanding Disc, 120 Grit (Pack of 5)

$8.94/ea $27.95/5 per each only $5.59/eaSave 37%

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OVERVIEW

Reliable Abrasive Performance for Metal Fabrication

For industrial welders and fabricators, consistency and removal rate are the metrics that matter most. The Walter 15C512V Coolcut 5" Sanding Disc delivers on both fronts, providing a reliable solution for general-purpose sanding and finishing on steel applications. This 120-grit fibre disc is designed to bridge the gap between aggressive stock removal and final surface polishing. It is an essential consumable for shops that require a uniform surface profile prior to painting, powder coating, or plating. The premium aluminum oxide grain structure is tough and friable, meaning it fractures to self-sharpen during use, maintaining a consistent cut rate throughout the disc's lifespan.

The Coolcut series is built on a heavy-duty fibre backing that provides the necessary rigidity for effective material removal while resisting edge tearing and deformation. In a high-throughput welding environment, disc failure can lead to downtime and safety hazards; Walter's robust construction minimizes these risks. The electrostatic grain distribution is a critical technical advantage, ensuring that the abrasive density is uniform across the entire face of the disc. This eliminates "hot spots" and ensures that the finish remains consistent from the first pass to the last, reducing the likelihood of rework caused by uneven sanding patterns.

Heat generation is a constant challenge in metal finishing, particularly when working with heat-sensitive alloys or thin-gauge steel. The Coolcut formulation includes active agents that help lubricate the cutting zone, significantly reducing friction and heat buildup. This "cool cutting" action prevents thermal damage to the workpiece, such as blueing or metallurgical changes in the heat-affected zone (HAZ). Compatible with standard 5-inch angle grinders (requires a backing pad), these discs are a cost-effective, high-performance option for MRO, structural steel fabrication, and general manufacturing. This 5-pack configuration ensures you have stock on hand for finishing tasks that demand precision and quality.

Industrial Benefits:

  • Consistent RA: Delivers a predictable surface roughness for coating adhesion.
  • Cost-Effective: Long service life reduces cost-per-part in production.
  • Versatile Application: Suitable for blending, cleaning, and finishing steel.
  • Safety & Stability: Strong backing reduces vibration and risk of disc disintegration.
Additional Information
Brand:Walter Surface Technologies
Diameter:5 in
Grit:120
Packaging Description:5 per each
Used To Sand:Steel
Disc Type:Fibre Disc
Series:Coolcut
Backing Material:Fibre
Abrasive Material:Aluminum Oxide

INCLUDED

  • 5 x Walter Coolcut 5" Sanding Discs (120 Grit)

APPLICATIONS

  • General purpose sanding of steel and ferrous metals
  • Blending light welds and fabrication marks
  • Surface preparation before painting or coating
  • Removing rust, scale, and light corrosion
  • Deburring and edge breaking
  • Finishing metal surfaces to a smooth 120-grit profile

FAQ

The Walter Coolcut disc is specifically designed for use on steel and general ferrous metals.

Yes, all fibre sanding discs require a hard or semi-flexible backing pad to be used safely and effectively on an angle grinder.

120 grit indicates a fine abrasive texture. It is used for finishing, smoothing out scratches from coarser discs, and preparing surfaces for paint, rather than heavy stock removal.

This product (SKU 15C512V) contains 5 sanding discs per package.

While it can physically sand stainless steel, Walter offers specific products like the Topcut or Coolcut XX series that are better optimized for stainless steel to prevent contamination and maximize performance. This Coolcut disc is best for mild steel.

Always check the disc label for the specific Max RPM. Generally, 5-inch fibre discs are rated for use with standard 4.5" to 5" angle grinders, typically around 10,000 to 12,000 RPM.

This is a fibre disc (resin fibre disc). It is a single layer of abrasive on a fibre backing, unlike a flap disc which has layered abrasive flaps.

Most standard 5-inch fibre discs feature a 7/8" center hole (arbor), which fits standard backing pads for 4.5" and 5" grinders.