Walter Topcut 3-Inch Zirconia Sanding Disc 120 Grit Type R

Name: Walter Topcut 3-Inch Zirconia Sanding Disc 120 Grit Type R
Brand: Welders Helper
SKU: 04D312
Price: 101.50 CAD
Availability: InStock

$3.18/ea $101.50/50 per each only $2.03/eaSave 36%

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SKU: 04D312 Categories: Abrasives, Sand and Blend Discs

OVERVIEW

Get Into Tight Spots with Walter Topcut

Every welder knows the frustration of trying to finish a weld in a tight corner or a confined space where a standard 4.5-inch angle grinder just won't fit. That is where the Walter Topcut™ 3-inch sanding disc (SKU: 04D312) shines. Designed to pair perfectly with your die grinder, this compact abrasive disc gives you the reach and control you need to clean up welds, deburr edges, and blend surfaces in the most awkward spots of your fabrication project. With a fine 120 grit, this disc is your go-to solution for that final smooth finish before polishing or painting.

What sets this disc apart is its Zirconia Alumina grain. If you are used to burning through cheap paper discs that lose their bite after a few minutes, you will appreciate the endurance of the Topcut™. It cuts fast and stays sharp longer, meaning you spend more time working and less time stopping to replace worn-out consumables. It is tough enough to handle mild steel but cool-running enough to use on stainless steel and aluminum without worrying about scorching the metal. The unique design helps push heat away from the surface, keeping your workpiece cool and preserving the integrity of the metal.

Time is money in the shop, and the Topcut™ respects that with its hassle-free TR mounting system. Compatible with standard Type R backing pads, it snaps on and off with a simple twist—no wrenches required. The color-coded backing is a simple but brilliant feature that lets you grab the right grit at a glance, keeping your focus on the job. Whether you are cleaning up a custom exhaust, smoothing out a bracket, or doing general maintenance repair, the Walter Topcut™ 3-inch disc delivers the professional results you expect from a top-tier brand.

Why Welders Choose Topcut:

Fast Changes: Twist-on/off system gets you back to grinding instantly.
Cool Running: Won't burn your stainless steel projects.
Long Life: Zirconia grain outlasts standard discs.
Versatile: One disc for steel, stainless, and aluminum.

Additional Information
Brand:Walter Surface Technologies
Grit:120
Size:3"
Used To Sand:Steel, Stainless Steel, Aluminum
Grain Type:Zirconia Alumina
Mounting System:TR (Type R)
Max RPM:30000
Backing Material:Plastic Button / Cloth
Packaging Description:50 per each

INCLUDED

1 x Walter Topcut 3" Sanding Disc (Grit 120)

APPLICATIONS

Blending welds in tight corners and confined spaces
Surface finishing on stainless steel tanks and vessels
Deburring machined parts and aluminum castings
General cleaning and rust removal on steel structures
Preparing metal surfaces for painting or polishing

FAQ

This specific Walter Topcut disc is 120 grit, which is considered a fine grit suitable for finishing and blending.

It uses the TR mounting system, which is compatible with standard Type R (roll-on/roll-off) backing pads.

Yes, the Walter Topcut is designed to work effectively on aluminum, as well as steel and stainless steel.

Yes, a 3-inch backing pad with a TR (Type R) connection is required to mount this disc to your tool.

This 3-inch disc is typically used with pneumatic or electric die grinders and right-angle sanders.

The grain is Zirconia Alumina, known for its durability and ability to self-sharpen during use.

Since this is a 120 grit disc, it is better suited for blending, cleaning, and finishing rather than heavy stock removal. For heavy removal, a coarser grit (like 36 or 60) would be recommended.