15I503 - Walter Two-in-One Flap Disc 5-Inch x 5/8-11 Finishing Disc

Technical Overview of the Walter Two-in-One Flap Disc

The Walter 15I503 Two-in-One™ Flap Disc represents a hybrid abrasive solution designed to streamline the metal finishing process. This 5-inch disc features a 5/8"-11 threaded arbor for direct mounting onto angle grinders, ensuring a secure and balanced fit without the need for additional locking nuts. The core innovation lies in its interleaved construction, which alternates flaps of high-performance coated abrasive cloth with Walter's proprietary BLENDEX™ non-woven conditioning material. This configuration allows the disc to perform light weld removal and surface finishing simultaneously, effectively bridging the gap between a traditional grinding wheel and a finishing pad.

Engineered primarily for stainless steel applications, the Two-in-One disc is formulated to be contaminant-free, ensuring it does not introduce iron, sulfur, or chlorine into the workpiece. This is critical for industries requiring high corrosion resistance, such as food and beverage processing or pharmaceutical manufacturing. The abrasive cloth provides the necessary aggression to level small TIG welds or blend surface imperfections, while the BLENDEX flaps cushion the cut and generate a consistent, smooth finish. This dual action significantly reduces heat generation, minimizing the risk of heat discoloration or warping on thin-gauge metals.

The 15I503 model is rated for a maximum speed of 12,200 RPM, making it compatible with standard 5-inch angle grinders. Its integrated backing plate eliminates the need for separate backing pads, ensuring a rigid yet responsive interface with the workpiece. By consolidating two steps into one, this abrasive tool optimizes workflow efficiency for fabricators dealing with architectural stainless steel, railings, and precision equipment.