Dt-Diatool Diamond Tile Blade 7 Inch Diamond Turbo X Mesh Rim, 7/8" Arbor Product Details Size: Diameter 180mm(7 Inch), Diamond height 10mm, Segment thickness 1.6mm. Bore 25.4mm, with a washer of 22.23mm, fits 1 inch arbor or 7/8 inch arbor. Grit: #60/70. Machine: Suitable for angle grinders all brands, tile saw,ect.Recommended RPM:5000. Maxmium RPM:8500. Please note whether the diameter of the product bore matches the diameter of the machine aobor. More efficient: X mesh turbo rim segments design helps cool the segments and bring the dust out,so that it can get more efficient and better performance. Long life: Hot-pressed sintered technology and blade with very high quality diamond provide long working life. Reinforced ring core makes cutting more stable and get better finishing. Application: For cutting ceramic tile, porcelain tile, marble, granite (not recommended for very hard granite). Dry or wet use. 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.