1pc Adjustable, Finger Joint-shank Router Bit. Features: Flexibility: This Type of Joint is Called a Canoe Joint Because Flexibility is Required at All Angles when Constructing a Canoe. This Router Bit Group: No Need to Set Different for Each Joint. Always Switch the Male End of the Switch Section. High Precision Mechanism Designoffers Accurate Operation and Long Service Life. High Abrasion Resistance:high-precision Grinding Technology. Strong and Sturdy:Simple Structure, Easy to Install and Use. SPECIFICATIONS: Material: Tungsten Cobalt Alloy Item: 8mm Shank 12mm Shank Router Bit Carbide Tip: YG6 Shank Diameter: 8mm12mm Function: Board Tenoning, Tenoning Joint Balance: +/- .003" Tolerance Type: T-Slot Milling Cutters Overall Length: 107.5 Diameter: 46 . Your order will be shipped from abroad so please allow the necessary time of at least 14 work days for delivery due to ongoing delays in postal deliveries globally.