Brschnitt Diamond Drill Bits Kit For Porcelain Porcelain Tile Ceramic Marble When you are building/remodeling a bathroom or kitchen like installing shower or install the faucet and handles in bathroom, you will need to drill holes through Porcelain tiles without cracking, so you could use our diamond tip drill bit to make those holes very precise Diameter 6-16 mm tile hole saw add wax lubricant inside. The wax will melt while drilling through porcelain tile and help cooling and Lubrication For a better finish and longer duration of the porcelain tile drill bit,you could start on a slight angle at its lowest speed for better control, then with light pressure carefully work through the tile The average life of the tile hole saw depends on several factors,including the type of aggregate and material, its thickness/hardness ,proper cooling and use Quality Creates Better Life. All our products are subjected to strict quality tests. We want all the products can be recognized for their quality and durability Product Features ?Size Diamond drill bit--dry/wet brazed diamond drilling bits Core bits with 5/8-11,25/35/45/65/75mm+20mm Finger Bits+50mm Beveling Chamfer Bit, Each Size 1Pc ?ATTENTION-this chamfer bit can NOT BE USED TO DRILL HOLES.Wide Applications -- enlarge/shape/round the EXISTING HOLES. Reduce the risk of cracking with standard and large format tiles subjected to tension (ex tightened plumbing, led lights etc),Bevel Ease chamfers and stress relieves rough holes in glass, ceramic and porcelain tiles ?Wide Application of drill bit --Worked great for porcelain tile, ceramics, bathroom tile,marble granite,stone,masonry, brick with ease,Using water could prolong the lifetime ?Fast and smooth drilling, long lifetime, less chipping ?Machine --For use on angle grinders Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!