The SA 717639 CR-ST is a 50 grit sanding sheet, available in a pack of 50 from Field Tool Supply. Designed for use on various surfaces, this sanding sheet features a durable construction that ensures effective material removal and a smooth finish. Its 50 grit rating makes it suitable for both initial sanding and finishing tasks. Compatible with standard sanding tools, it is ideal for woodworking, metalworking, and automotive applications. The high-quality materials used in its production guarantee longevity and consistent performance.