i am using a 7" black & decker rotary masonary saw blade (an epoxy type abrasive blade, not diamond) on a table saw to cut 12" glazed ceramic floor tile. when i cut invariably it produces chips off the finished surface. i am cutting with the finished surface up. is there any way of getting a clean cut with this type of blade? if not are there suggestions on an affordable way of getting a clean cut? thanks!!