Stainless Steel, Metal, Iron, And Wood Can All Be Cut With The Tct Hole Saw Set, Product Details Various Size:16mm(5/8?), 22mm(7/8?), 30mm(1-1/8?), 40mm(1-1/2?), 50mm(2?), 60mm(2-3/8?). A variety of sizes to meet your different needs. Wide Application: Ideal for stainless steel, metal, iron, and plastic, aluminum, FRP, etc. so on. Remember to add coolant during continuous high-speed drilling. High Quality Material?Our hole saw is made of high quality Cemented Carbide, ensures its high hardness, rust proof and sturdy. Besides, the center drill adopts S6542 as material, because of high accuracy, it?s hard to break. Increase Efficiency: With outer blade, middle blade, inner blade, small incision resistance and no burrs during drilling. Opening neat, smooth, no broken edges, no tremor phenomenon, chip easily. Lifetime Guarantee: We focus on the quality of products and care about your satisfaction. If you have any question, please contact us by email or Q A, the reply will be provided within 24 hours. 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.