New from 1Glass Impressions!  Glass Drilling Set, with powerful suction cup guide to prevent drifting.  Diamond coated core Drill Bits 11 pcs.  One each 3/16", 1/4", 5/16", 3/8", 1/2" 3/4". Ideal for Glass, (Non-Tempered), Mirror, Ceramics, Porcelain, Mable,  Granite, and Limestone. These Core Drills can be used with handheld Drill.  Compact case included. For more info.  920 382 1807