DEWALT DW4554 7-Inch by 1/4-Inch by 7/8-Inch Masonry Grinding<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Silicon carbide grain for long wheel life in all masonry materials</li><li>High grain concentration for agressive grinding action and smoother running wheels</li><li>Proprietary wheel design ensures durable long life wheels</li><li>3 full sheets of glass in every 1/4-inch wheel and 2 full sheets in every 1/8-inchwheel for added durability and safety</li></ul></div><img src="http://ecx.images-amazon.com/images/I/61jcMrslKiL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41BvZENAs-L.jpg" noproxy>