uxcell 8mm Inner Dia Leather Belt Gasket Hollow Hole Metal Punch Cutter Tool Product Name : Hollow Hole Punch;Material : Metal Inner Diameter : 8mm/ 5/16"(0.31");Hole Size(Approx. ) : 24 x 17mm/ 0.95" x 0.68"(L*W) Overall Size : 11 x 100mm/ 0.43" x 4"(Outer D*L);Color : Gray Weight : 59g Package Content : 1 x Hollow Hole Punch