Home Shop Walter 3-Inch Spinlock Zirconia Sanding Disc 80 Grit
Awaiting product image

09D508 - Walter 3-Inch Spinlock Zirconia Sanding Disc 80 Grit

Packaging: 25 per each
$2.32/ea

Package Price:

$58.00/25 per each

Usually ships within 3-5 business days

SKU: 09D508 Categories: ,

OVERVIEW

High-Performance Small Diameter Sanding

The Walter Spinlock Z/A Resin Fiber Disc (SKU: 09D508) is a premium abrasive solution designed for industrial maintenance, repair, and fabrication professionals who demand efficiency and durability. Engineered with high-quality Zirconia Alumina grain, this 3-inch disc excels at removing material quickly while maintaining a consistent finish throughout its lifespan. The 80-grit composition makes it an excellent choice for intermediate blending, light deburring, and surface conditioning tasks where precision is paramount.

Optimized for Tight Spaces

One of the primary challenges in MRO and fabrication is accessing confined areas without compromising on power or finish quality. The 3-inch diameter of this Spinlock disc allows operators to reach into corners, channels, and complex geometries that larger 4.5-inch or 5-inch grinders simply cannot access. Whether you are cleaning up a repair weld inside a pipe or smoothing out a bracket in a machinery housing, the compact size ensures you can apply the necessary abrasive action exactly where it is needed.

The Spinlock Advantage

Time is money in any industrial setting, and the Walter Spinlock fastening system is designed to minimize downtime. Compatible with standard Type R backing pads, the plastic button on the back of the disc allows for effortless, tool-free mounting and dismounting. A simple twist locks the disc securely in place, capable of withstanding high RPMs, and a reverse twist releases it just as fast. This feature is particularly beneficial when switching between grits during a multi-stage finishing process, allowing technicians to move from stock removal to blending in seconds.

Versatile Material Compatibility

This resin fiber disc is formulated to perform across a wide range of materials. It is highly effective on carbon steel, offering aggressive bite for rust and scale removal. On stainless steel, the cool-cutting properties of the Zirconia grain help prevent heat discoloration and warping, preserving the integrity of the base metal. It is also suitable for use on aluminum, resisting loading better than standard aluminum oxide discs. For workshops handling diverse materials, the Walter 09D508 provides a versatile, reliable, and long-lasting abrasive solution.

Additional Information
Packaging Description:25 per each
Brand:Walter
Size (in):3"
Grit:80
Used to Sand:Steel or Stainless or Aluminum
Grain Type:Zirconia Alumina
Mounting System:Spinlock (Type R)
Backing Material:Resin Fiber
Product Type:Sanding Disc

INCLUDED

  • 1 x Walter Spinlock Z/A Resin Fiber Disc, 3" Grit 80

APPLICATIONS

  • Blending and finishing welds in tight corners and confined spaces.
  • Surface preparation and cleaning on steel, stainless steel, and aluminum.
  • Removing rust, paint, and mill scale from small metal parts.
  • Deburring machined edges and contours.
  • Automotive bodywork and custom fabrication finishing.
  • Maintenance and repair on machinery housings and brackets.

FAQ

The Spinlock system is Walter's quick-change fastening method, featuring a plastic button on the back of the disc. It is compatible with standard Type R (roll-on/roll-off) backing pads, allowing for tool-free disc changes.

This Zirconia Alumina (Z/A) disc is versatile and effective on steel, stainless steel, and aluminum. It is designed to cut cool, making it safe for heat-sensitive metals.

Yes, you need a 3-inch backing pad compatible with the Spinlock / Type R fastening system. The pad attaches to your die grinder or angle tool.

Zirconia Alumina is tougher and more durable than standard aluminum oxide. It is self-sharpening, meaning it maintains a high cut rate for longer and generates less heat.

80 grit is considered a medium grade. It is excellent for light stock removal, blending, and refining surfaces, but for heavy grinding, a coarser grit like 36 or 50 would be faster.

Typically, these 3-inch discs are used on die grinders or smaller right-angle air tools. To use them on a standard 4.5-inch or 5-inch angle grinder, you would need a specific adapter or backing pad designed for that spindle size.

While specific max RPM can vary, small diameter discs like this are generally rated for high speeds, often exceeding 20,000 RPM, to match the output of pneumatic die grinders.

Related products