Diamond Core Drill Bits Set 12Pcs Tile Hole Saw Kit 5/8"-11, 1/2" Diamond Blade Product Details [Package Includes]--12pcs 5/8-11 thread vacuum brazed diamond drill bit set ,6/8/10/25/32/35/50m+ 50mm Tile cone bit+ 20mm diamond finger Bit+SDS shank adapter+Hex shank adapter+4-1/2 inch Diamond Blade. [Wide Application] --Worked great for dry drilling clean holes through porcelain tile shower walls, ceramics, bathroom tile, marble granite, stone,masonry, brick, stucco, counter top with ease,Using water could prolong the lifetime of the tile drill bits [Vacuum Brazed Technology] --Increases resistance to temperature and friction, provide 5x the working life compared with electroplated bits, more heavy duty and wear resistant. High-quality core steel body helps to be more efficient and durable, not easy to deform,you could drill smoothly with no broken edges [4 in 1] --The combination of drill, chamfer and diamond saw blade makes the work more efficient and allows you to drill, chamfer, mill and ream in multiple sizes with one set of tools. [Machine] --Recommended RPM is 6000; Maximum RPM is 11000. angle grinder (direct connection) or electric drill (with adapter ). Aluminium portable suitcase included. For easy carry and storage and protect of the core bit. It can also be given as a unique gift for Men 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.