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Walter Coolcut 7-Inch 36 Grit Resin Fibre Disc

$3.80/ea $59.50/25 per each only $2.38/eaSave 37%

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OVERVIEW

Achieve Smoother Welds with Walter Coolcut 7" 36 Grit Discs

For welders who demand efficiency and quality in their surface preparation and finishing, the Walter Coolcut 7" Sanding Disc (SKU: 15C703) is a go-to choice for tackling steel. Welding often leaves behind excess material, spatter, and heavy beads that need to be leveled quickly before the next stage of fabrication. This 36-grit fibre disc is aggressive enough to chew through weld metal rapidly, allowing you to flatten beads and blend surfaces without spending all day on a single joint. The 7-inch size covers a large surface area, making it ideal for working on structural beams, large plates, and heavy machinery repairs.

What sets the Coolcut apart is its smart design focused on heat management and cutting aggression. Heat buildup is the enemy of any abrasive; it glazes the disc and can ruin the temper of the metal you are working on. Walter's Coolcut technology helps mitigate this by promoting a cooler cutting action, which extends the life of the abrasive grains. The aluminum oxide grit is sharp and tough, fracturing as it wears to reveal new cutting edges. This self-sharpening effect keeps the disc cutting aggressively right down to the backing, ensuring you get the most value out of every disc in your shop.

This disc is specifically formulated for general-purpose sanding on steel. It requires a compatible backing pad to provide the necessary support and flexibility. When paired with a high-torque angle grinder, the 15C703 allows welders to apply significant pressure for deep grinding or lighten up for blending. Whether you are prepping a surface for a critical weld or cleaning up a finished fabrication for painting, the consistency of the Coolcut disc ensures you won't leave behind deep, erratic gouges that are hard to fix. It is a reliable workhorse for any welder's arsenal.

Why Welders Choose Coolcut:

  • Fast Weld Removal: The coarse 36 grit makes short work of high weld beads and heavy slag.
  • Cooler Grinding: Reduces the risk of heat-checking the workpiece during extended grinding sessions.
  • Versatile Application: Perfect for everything from beveling plate edges to cleaning up repair welds on heavy equipment.
Additional Information
Brand:Walter Surface Technologies
Diameter:7 in
Grit:36
Used To Sand:Steel
Arbor Size:7/8"
Product Line:Coolcut
Grain Type:Aluminum Oxide
Backing Material:Fibre
Max RPM:8600
Packaging Description:25 per each

INCLUDED

  • 1 x Walter 7" Gr36 Coolcut Sanding Disc

APPLICATIONS

  • General purpose sanding of mild steel
  • Heavy weld removal and leveling
  • Surface cleaning and rust removal
  • Deburring and edge chamfering
  • Stock removal on structural steel
  • Preparation of metal surfaces for painting or coating

FAQ

The 15C703 Coolcut disc is designed primarily for general purpose sanding on steel and other ferrous metals.

Yes, this is a resin fibre disc and requires a hard or semi-flexible backing pad sized for 7-inch discs to operate safely and effectively.

This disc is 36 grit, which is a coarse grit suitable for heavy stock removal and leveling welds.

The maximum safe operating speed for this 7-inch disc is typically 8,600 RPM. Always verify the rating on the disc label.

Coolcut technology utilizes specific grain orientation and bonding agents to reduce friction and heat buildup, preventing the disc from glazing over prematurely.

While it can grind stainless, Walter offers specialized discs like the Topcut or Coolcut XX specifically formulated for stainless steel to prevent contamination and heat issues. The 15C703 is best for mild steel.

The arbor hole is 7/8 inch, which is the standard size for most 7-inch and 9-inch angle grinders.

Yes, the 36 grit is aggressive enough to strip paint and rust quickly, though it will leave a coarse scratch pattern on the metal underneath.

CATALOGUE & SPEC SHEETS

Safety Data Sheet