Specifications:Item: Dovetail Router Bit Material: 45# steelCarbide tip: YG8Shank Diameter: 1/4 inch, 6mmBalance: +/- .003" tolerance Body: Solid Hardened Steel Blade: Industrial grade micro grain carbide Cutter: CNC ground to a 600 grit, mirror-like finish★Notes:- Delivery time is 7-21 working days. If the logistics has not been updated for a long time, please contact us, we will reply you within 24 hours.- We provide perfect after-sales service, there will be slight error in size and color, this is normal, thank you for your understanding,only sell products, others are decorations.- If you have any questions about this product, you can ask questions directly or contact us by email. We will answer your questions within 24 hours.- We apologize for the late reply during holidays (included Sundays).