Makita Flap Disc Zirconia Aluminum/ Fiberglass Backing/ Flat

The Makita D-74142 is a 100 mm (4-inch) flat-profile abrasive flap disc featuring premium aluminum oxide grains optimized for general-purpose steel grinding and surface blending. Built with a rigid fiberglass backing plate, it absorbs heavy operational vibrations and ensures uniform abrasive cloth wear without marring the workpiece. Its flat Type 27 design makes it perfect for blending flat metal sheets, cleaning weld splatter, and deburring rough edges using standard workshop angle grinders.