uxcell Wood Cutting Tool 1/4" Shank 5/8" Cut Dia Core Box Router Bit 2 Pcs Product Name : Core Box Router Bit;Material : Steel, Carbide;Standard : 1/4" x 5/8" Shank Diameter : 6.35mm / 1/4";Cutting Diameter : 15.9mm / 5/8" Cutting Radius : 7.95mm / 5/16";Cutting Depth : 11.1mm / 7/16" Overall Length : 42mm /1.7";Color : Silver Tone Weight : 21g;Package Content : 2 x Core Box Router Bit