For Use With Porcelain Tile, Ceramic, Marble, Brick, And Concrete Vacuum Brazed Product Details Vacuum dry/wet brazed diamond drilling bits Core bits with 5/8-11,25/35/45/50/65/75mm,Each Size 1Pc+1Pc 20mm Finger Bits Whether ceramic, tiles,porcelain tile, granite, marble, stone, masonry or brick,this kit is suitable for all these materials drilling/enlarging, shaping High quality and Durability:This tiling installation kit is made of high quality diamond and steel by vacuum brazed diamond technology.provide very high efficiency,drilling faster,durable and sturdy Fast and smooth drilling ,long lifetime,less chipping Aluminium portable suitcase included. for easy carry and storage and protect of the core bit Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.