Shdiatool Dry Diamond Hole Saw 4 Inch For Porcelain Ceramic Tile Marble Brick Product Details 4" Vacuum brazed diamond drilling bit with 5/8-11 connection for Porcelain Ceramic Tile Machine: Angle Grinder. Diameter 100mm, 5/8-11 connection, Total height 62MM, Max working depth 35mm, Diamond height 10MM Dry/wet drilling for porcelain tile marble stone masonry brick normal stone. High quality Diamond Grain provide fast and smooth drilling. 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.