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Walter 3-Inch Spinlock Aluminum Oxide Sanding Disc 120 Grit

$1.82/ea $28.50/25 per each only $1.14/eaSave 37%

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OVERVIEW

Get Into Tight Spots with Confidence

For welders and fabricators, finishing the job is just as important as laying the bead. The Walter Spinlock A/O Resin Fiber Disc (3" G120) is your go-to tool when you need to clean up welds in hard-to-reach places. We all know the frustration of trying to jam a standard angle grinder into a tight corner or a small pipe interior. This 3-inch disc solves that problem, giving you the maneuverability to blend and finish without gouging the surrounding metal or compromising your work.

Time is money in the shop, and the Spinlock quick-change system is built to save you both. Instead of fumbling with wrenches and flange nuts, you can twist this disc on and off in a heartbeat. This is a game-changer when you are stepping down grits to get that perfect satin finish. The 120 grit Aluminum Oxide grain is aggressive enough to smooth out minor imperfections but fine enough to leave a scratch pattern that is easy to polish or paint over. It’s the perfect balance for that final prep stage.

Durability is key when you are grinding on steel, stainless, or aluminum. Cheap discs fly apart or clog up instantly, but Walter’s resin fiber backing holds the grain securely, giving you a longer life out of every disc. This means fewer trips to the tool crib and more time making sparks. Whether you are cleaning up a custom exhaust, prepping a bracket for powder coat, or just knocking down sharp edges on a fabrication project, this disc handles the heat and keeps on cutting.

Don't let tight spaces slow down your production. Equip your die grinder with the Walter 09D212 and experience the difference a quality abrasive makes. It runs smooth, cuts cool, and leaves a finish you can be proud of. Add a pack to your consumables drawer and be ready for whatever the job throws at you.

Additional Information
Brand:Walter Surface Technologies
Diameter:3
Grit:120
Used To Sand:Steel, Stainless Steel, Aluminum
Grain Type:Aluminum Oxide
Attachment Type:Spinlock (Type R)
Product Type:Resin Fiber Disc
Application:Finishing, Blending
Packaging Description:25 per each

INCLUDED

  • 1x Walter Spinlock A/O Resin Fiber Disc, 3" G120

APPLICATIONS

  • Blending welds in tight corners and confined spaces
  • Surface preparation for painting or coating
  • Removing light rust, oxidation, and mill scale
  • Deburring machined parts and sheet metal edges
  • Finishing stainless steel, aluminum, and mild steel surfaces
  • Automotive bodywork and detail sanding

FAQ

This disc is designed for use with right-angle die grinders equipped with a 3-inch backing pad that accepts Spinlock (Type R) attachments.

Yes, the Aluminum Oxide grain is suitable for aluminum, as well as steel and stainless steel. For extended work on aluminum, ensure you monitor for loading.

Spinlock is Walter's quick-change attachment system, similar to the industry-standard Type R (plastic threaded button), allowing for tool-free disc changes.

This is a Resin Fiber Disc. While it is used for similar blending tasks, it consists of a single layer of coated abrasive on a fiber backing, rather than layered flaps.

120 grit is a fine abrasive used for final blending, smoothing out scratch patterns from coarser grits, and preparing surfaces for painting or polishing.

Yes, a compatible 3-inch backing pad with a Spinlock/Type R connection is required to use this disc safely and effectively.

Always check the disc label for the specific Max RPM. Generally, 3-inch quick-change discs are rated for high-speed die grinders, often up to 20,000 RPM, but verification is essential.

Resin fiber backing is significantly stiffer and more durable than paper, allowing for more aggressive cutting and better resistance to heat and tearing during metalworking.
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