Enhance your DIY projects with the Faithfull 5-Piece Mounted Grinding Stones Set. This versatile set includes five miniature grinding wheels, ranging from 13mm to 24mm in diameter, equipped with 6mm (1/4 inch) shanks for seamless compatibility with most electrical and cordless drills. Perfect for sharpening and grinding various materials including steel, metals, glass, ceramics, and plastics, this set features an array of shapes such as tree, cone, large cone, cylindrical, and ball. Each grinding wheel is designed to withstand a maximum speed of 30,000 RPM, making it an essential addition to your toolkit for precision and efficiency.