09D112 - Walter 2-Inch Spinlock Aluminum Oxide Sanding Disc 120 Grit

Technical Overview of the Walter Spinlock A/O Resin Fiber Disc

The Walter Spinlock A/O Resin Fiber Disc (SKU: 09D112) is a specialized abrasive tool engineered for precision blending and finishing tasks in industrial environments. This 2-inch disc utilizes a high-performance Aluminum Oxide (A/O) grain structure, which is renowned for its toughness and ability to fracture under stress to reveal fresh cutting edges. This self-sharpening characteristic ensures a consistent cut rate and prolonged service life, making it an economical choice for high-volume fabrication shops. The 120-grit composition is specifically selected for fine finishing stages, effectively removing scratches from coarser abrasives and preparing surfaces for painting, polishing, or final inspection.

Central to this product's design is the Spinlock quick-change attachment system. This mechanism allows operators to switch out worn discs or change grit sizes in seconds with a simple twist-on, twist-off motion, minimizing non-productive downtime. The resin fiber backing provides a rigid yet slightly flexible support for the grain, allowing the disc to maintain contact with the workpiece while resisting tearing or edge disintegration. This structural integrity is crucial when working on irregular surfaces or when applying pressure to blend welds in confined spaces. The disc is formulated to perform across a variety of metallurgies, including mild steel, stainless steel, and aluminum, without inducing excessive heat buildup that could lead to warping or discoloration of the base material.

The 09D112 is optimized for use with right-angle die grinders and small pneumatic tools, operating efficiently at high RPMs to deliver a smooth, uniform finish. Its compact 2-inch footprint enables access to internal diameters, channels, and complex geometries where larger 4.5-inch or 5-inch discs cannot reach. By combining a reliable A/O grain blend with the convenience of the Spinlock system, Walter Surface Technologies delivers a solution that balances material removal speed with surface finish quality.