Glass Tile Marble Hole Drilling Bit Set Features Glass Tile Marble Hole Drilling Bit Set TIP: Can be used with a standard electric drill, Always use lubrication (water), otherwise the diamond core drill will burn. Warnings: Not for use on Concrete or for depths beyond about 2ł; Water is required for lubrication when drilling. 16 SIZES: Total 16 different sizes (3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, 18mm, 25mm 32mm, 40mm 50mm, 60mm, 70mm, 80mm, 100mm).Different sizes meet your different needs,help you in different places. OUR GUARANTEE We truly believe we make some of the most innovative products in the world, and we want to make sure we back that up with a risk-free ironclad 45 day guarantee. If you don't have a positive experience for ANY reason, we will do WHATEVER it takes to make sure you are 100% satisfied with your purchase. Buying items online can be a daunting task, so we want you to realize that there is absolute ZERO risk in buying something and trying it out. If you don't like it, no hard feelings we'll make it right. We have 24/7/365 Ticket and Email Support. Please contact us if you need assistance. Remember: Shipping usually takes 2-3 weeks read our Shipping for more details!
