uxcell Woodworking 1/4" Shank 3/8" Cutting Dia Corner Round Over Bit 2pcs Product Name : Corner Rounding Bit;Material : Metal;Standard : 1/4" x 3/8" Cutting Diameter : 9.52 mm / 3/8";Cutting Radius : 4.76mm/ 3/16";Shank Diameter : 6.3mm / 1/4" Bearing Diameter : 9mm / 0.35";Cutting Depth : 9mm / 9/25";Cutting Width : 4.76mm / 3/16" Overall Diameter : 22.5mm / 57/64";Overall Length : 49mm / 1.9";Color : Silver Tone, Gray Weight : 50g;Package Content : 2pcs x Rounding Bits