Using for hand making a drawer or other woodworking. Industrial quality router bits. Solid hardened steel bodies with anti design. -up & heat resistant PTFE coating. Hook & Shear Angles: High hook & shear angles allow to smoothly into producing clean, splinter free. : Totally enclosed & lubricated. Specifications: Item: 8MM Router Bit Carbide tip: YG6 Balance: +/- .003inch tolerance Body: Solid Hardened Steel Blade: Industrial grade Mini grain carbide Cutter: ground to a 600 grit, mirror-like finish colour: blue + silver Material: cemented carbide +45# steel Package Contents: 3 x round knife Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed error is +/- 1-3cm.