09D212 - Walter 3-Inch Spinlock Aluminum Oxide Sanding Disc 120 Grit

Precision Finishing with Walter Spinlock Technology

The Walter Spinlock A/O Resin Fiber Disc (SKU: 09D212) represents a high-standard solution for industrial surface conditioning and finishing. Engineered with a premium blend of Aluminum Oxide (A/O) grains, this 3-inch disc is designed to deliver consistent material removal rates while maintaining a high-quality surface finish. The resin fiber construction provides the necessary rigidity for edge work while retaining enough flexibility to contour slightly to the workpiece, making it an exceptional choice for MRO (Maintenance, Repair, and Operations) environments where precision is paramount.

One of the standout features of this abrasive is the Spinlock quick-change attachment system. Compatible with standard Type R backing pads, the Spinlock mechanism allows operators to switch between grits or replace worn discs in seconds, significantly reducing non-productive downtime. This is particularly advantageous in multi-step finishing processes where moving from a coarse grit to a fine 120 grit is required to achieve the desired surface profile. The 3-inch diameter is specifically optimized for confined spaces, allowing technicians to reach into corners, channels, and complex geometries that larger 4.5-inch or 5-inch discs cannot access.

Ideally suited for a wide range of materials, including mild steel, stainless steel, and aluminum, this disc minimizes cross-contamination risks when used according to best practices. The 120 grit rating indicates a fine abrasive structure, perfect for the final stages of weld blending, removing light oxidation, or preparing surfaces for painting and coating. By maintaining a cool cutting action, the Walter Spinlock disc helps prevent heat discoloration on sensitive alloys, ensuring the structural integrity and aesthetic quality of the base metal are preserved.

In summary, the Walter 09D212 combines durability, efficiency, and versatility. It is a consumable that meets the rigorous demands of professional fabrication shops, automotive repair facilities, and industrial manufacturing plants. Whether used for deburring, blending, or general surface improvement, this resin fiber disc delivers reliable performance that professionals trust.