Temo 10 Pc 1/8 To 1/2 Inch Premium Diamond Coated Drill Hole Saw 1/8 Inch Shank Product Details New assorted 3-12mm (1/8" to 1/2") PREMIUM diamond coated hole saw (total: 10 pcs, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 mm). Manufactured by GRIT 50 premium type diamond sands specail for cutting. Suitable for use in drill hole on glass, marble, tile or granite. ALL in 1/8" (3.175mm) shank fit your hand drill, drill press for Dremel and Foredom tool with a 1/8" (3.175mm) collet | Working length : 35mm US-BASED CUSTOMER SERVICE: Available by chat, email, phone, or visit us at our customer service center in La Crosse, WI. 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.