DEWALT DW8337 4-1/2-Inch by 5/8-Inch-11 24g Type 29 HP Flap Disc<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Zirconia grit enables 3X's faster material removal than fiber resin metal sanding discs</li><li>Premium abrasive cloth provides up to 15X's longer life than fiber resin metal sanding discs</li><li>Type 29 fiberglass backing provides grinding angle of 20-25 degrees</li></ul></div><img src="http://ecx.images-amazon.com/images/I/61W1ZG2B%2BvL.jpg" noproxy>