Product Details
The 3M™ Trisect™ cloth belt 237AA measures 3" x 132" and features A6 grit aluminum oxide abrasive with a resin structure designed to break down under medium pressure, maintaining fresh, sharp mineral cutting for consistent finishes on hard metals such as carbon and stainless steel. It incorporates a grinding aid to reduce heat buildup, warping, and discoloration. Constructed on an X-weight durable cloth backing, the belt offers control, conformability, and effective medium-pressure grinding, with resin-bonded abrasive that enhances heat resistance and prevents delaminating. The belt uses a film media splice—a thin, strong film that securely joins the belt ends—minimizing chatter marks and ensuring smooth running and consistent finishing. Compared to conventional abrasives, 3M™ Trisect™ belts produce finer finishes, achieve results faster, last up to five times longer, and start and stay sharp for predictable, high-quality finishes. Their three-dimensional abrasive structures are uniformly distributed to ensure consistent performance and eliminate variability between discs. Applications include blending, centerless and cylindrical grinding, finishing, flat finishing, refining, and stroke sanding across industries such as builders hardware, medical instruments, metal fabrication, metal implants, plating and polishing, plumbing fixtures, and turbine engines.








