Uxcell a12103000ux0547 Uxcell Product Name : Core Box Router Bit; Material : Metal Color : Gray; Shank Diameter : 12.7mm / 1/2" Cutting Diameter : 25mm / 1";Shank Length : 35mm / 1 1/4" Overall Length : 50mm/ 1.97";Weight : 60g Package Content : 1 x Core Box Router Bit, 1 x Teal Green Case