uxcell 2 Pcs Woodworking Carpenter 1/2" x 1 1/2" Core Box Router Bit Product Name : Core Box Router Bit;Material : Steel, Carbide Standard : 1/2" x 1 1/2";Shank Diameter : 12.7mm / 1/2" Cutting Diameter : 38.1mm / 1 1/2";Cutting Radius : 19.05mm / 3/4" Overall Length : 58mm / 2.3";Color : Silver Tone Weight : 170g;Package Content : 2 x Core Box Router Bit