1/4" Extra Long Carbide Square End Mill For Aluminum, Copper Alloy,, 1 Pieces Product Details ?Material?: Cnc 3-Flute Solid Carbide Spiral Router Bit.For Aluminum Alloy And Copper Alloy, Magnesium Alloy, Zinc Alloy,Acrylic, Plywood, OAK, MDF, and Any Hardwood?Etc. ?Dlc Coating?:Dlc(Diamond-Like Carbon) Coating Has Ultra-High Hardness,Low Friction Coefficient, High Temperature Resistance, Good Electrical Insulation, Chemical Barrier, High Thermal Conductivity, Ultra-High Anti-Blocking Performance. ?Adventage?:Surface Finishes Are Greatly Improved No Matter If You Are Roughing Or Finishing Due To Effective Chip Removal; Cut Faster Thanks To Superior Material Removal Rate (Mrr) Especially When Slotting. ?The 45 Degree Helix Angle Design? According To The Characteristics Of Soft Materials Such As Aluminum Alloy And Copper Alloy, It Adopts A 45 Degree Large Helix Angle Design.Greatly Improves The Production Efficiency, Sharp And Durable, Convenient For Chip Removal. ?Package Included?: 1/4" Extra Long (1 Pieces) 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.