ITEM NAME:2pc Matched Tongue and Groove Router Bit Woodworking Cutter Tools 1/4" Tooth Description: - 100% Brand new and high quality - T Type, 8mm shank, 3 teeth tenon cutter floor handmade milling cutter for woodworking - Shank: 8mm (5/16") - Tongue Router Bit: 1 Pair of Tooth Width: 6.35mm (1/4"), Tooth Depth: 6.35mm (1/4"), Overall Length: Approx. 72mm (2.83") - Groove Router Bit (Outer Diameter x Inner Diameter): Approx. 33mmx22mm (1.30"x0.87") Specification: - Material: Car.T Type, 8mm shank, 3 teeth tenon cutter floor handmade milling cutter for woodworking. 72mm (2.83"). 33mmx22mm (1.30"x0.87"). - Shank: 8mm (5/16").