Router Bits Rotary Bits Tool Straight Shank 2-12Mm, Carbide Tungsten Steel 4 Product Details 2-12mm End Mill Set: This end mill set includes 8 diameter sizes of 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, satisfy your different needs. Material: Tungsten steel Carbide has the advantages of high hardness, wear resistance, toughness and corrosion resistance. It also has stronger heat resistance than HSS, so it can maintain hardness even at high temperature. Tungsten steel is mainly composed of tungsten carbide and cobalt, accounting for 99% of all components. Tungsten steel is also called cemented carbide and is considered to be the teeth of modern industry. Detail design: High-precision cutting edge with suitable negative forefoot design, taking into account the strength and sharpness of the cutting edge. At the same time, the large core diameter is used to enhance the rigidity of the tool and make the cutting and chip removal stable. Wide Application CNC End Mill?It can be used on many fields, such as metal processing, CNC machining and engineering using. Large chip flute design for smoother chip removal, making the workpiece smoother and brighter. Surface finishes are greatly improved no matter if you are roughing or finishing due to effective chip removal 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.