Makita Metal Sanding Disc D-63410 Uses steady, controlled abrasion to give mild steel a smooth, even surface. For precise work, the flexible disc design adjusts to corners, edges, and curves. Long-term use without quick wear is supported by the use of robust abrasive material. Improves user control and lessens vibration during extended grinding sessions. The majority of 100mm angle grinders are compatible, making integration quick and simple. Grit / A80 Bore (B) / 16 mm Grinding Disc Diameter / 100 mm