uxcell Silver Tone Steel Round Nose Core Box Router Bit 1/4" x 1" Product Name : Core Box Bit;Material : Steel Color : Silver Tone;Shank Diameter : 6mm / 1/4" Shank Length : 30mm / 1 1/8";Cutting Diameter : 25mm / 1" Cutting Depth : 18mm / 23/32";Total Length : 48mm / 1 7/8" Weight : ~37g;Package Content : 1 x Core Box Bit