back to mirror 16 inch plate glass new tool with hard tiles works grate no scratches 3 hr 220 grit,4 hr 320 grit,3 hr wao25. Some pits left but not deep and small in size is it ok to go to wao 15 at this time. takes half the time to grind with hard tiles, grit before was cutting tiles not the glass. _______________________________________________ ATM mailing list http://www.atmlist.net/