15W612 - Walter ALLSTEEL 6-Inch Flap Disc 120 Grit with Trimmable Backing

Technical Overview: Walter ALLSTEEL™ 15W612

The Walter ALLSTEEL™ 15W612 is a high-performance flap disc engineered for industrial steel fabrication and finishing applications. This 6-inch disc features a 7/8-inch arbor, making it compatible with standard heavy-duty angle grinders. The abrasive medium is composed of a specialized blend of Zirconia Alumina grains. This material is selected for its friability, allowing the grains to micro-fracture under pressure, thereby self-sharpening and maintaining a consistent cutting action throughout the lifespan of the disc.

With a grit rating of 120, this specific SKU is optimized for the final stages of surface preparation, such as blending fillet welds, removing light imperfections, and preparing surfaces for painting or coating. The disc structure is designed to operate effectively with minimal operator pressure, reducing fatigue during extended use.

Trimmable Backing Technology

A defining technical feature of the ALLSTEEL™ line is the trimmable backing plate. Unlike traditional fiberglass backings that can damage the workpiece if they make contact, the ALLSTEEL™ backing can be trimmed down as the abrasive flaps wear. This capability exposes unused abrasive material near the center of the disc, extending the usable service life and maximizing the material removal per disc.

Application Suitability

This product is specifically formulated for use on steel. It excels in applications requiring controlled material removal and a high-quality surface finish. The 6-inch diameter offers a balance between coverage area and maneuverability, suitable for both large surface blending and targeted deburring tasks.