04D308 - Walter Topcut 3-Inch Twist-On Sanding Disc 80 Grit

High-Performance Abrasive Finishing

The Walter Topcut Sanding Disc (SKU: 04D308) represents the pinnacle of efficiency for small-diameter abrasive applications. Designed for industrial environments where speed and finish quality are paramount, this 3-inch disc utilizes premium Zirconia Alumina grain. This abrasive material is renowned for its self-sharpening properties, ensuring that the disc maintains a high cut rate throughout its lifespan. Unlike standard aluminum oxide discs that dull quickly, the Topcut series fractures to reveal fresh cutting edges, making it an economical choice for high-volume fabrication shops.

Optimized for Confined Spaces

One of the primary challenges in metal fabrication is reaching tight corners and intricate contours. The 3-inch diameter of this Topcut disc is perfectly sized for these confined spaces, allowing operators to grind, blend, and finish areas that larger 4.5-inch or 5-inch grinders simply cannot reach. Whether you are cleaning up inside a channel, smoothing a fillet weld, or prepping a small surface for painting, the compact size and flexibility of this disc provide superior control.

Quick-Change Twist System

Time is money in production environments. The Walter Twist mounting system (compatible with Type TR/Roloc systems) allows for tool-free disc changes in seconds. A simple quarter-turn locks the disc securely onto the backing pad, and removal is just as fast. This feature is particularly beneficial when a job requires progressing through multiple grits—from coarse grinding to fine blending—eliminating the downtime associated with wrench-tightened arbors.

Versatile Material Application

The 04D308 is engineered to perform across a wide range of materials. It delivers aggressive stock removal on carbon steel while remaining cool enough to prevent heat discoloration on stainless steel. It is also effective on aluminum, resisting loading better than many competitors. The 80-grit abrasive offers a perfect balance between material removal and surface finish, making it an ideal intermediate step in the finishing process.