DEWALT DAGH1G0610 4-1/2 by 1-3/26 by 5/8-11 60g Flap Wheel Premium aluminum oxide grain for fast material removal Uniquie deisgn with 5/8-inch-11 center hub allows use on high speed angle grinders Large wheel face quickly makes finishing touches and decroative finishes Has 60 grit Has 13,300 max RPM