uxcell Iron Cutting 18.5mm Hole Saw Twist Drill Bit w Hex Wrench Product Name : Hole Saw;Material : HSS Bit Diameter : 5mm/ 0.2";Shank Size : 7 x 20mm / 0.27" x 0.79"(D*H) Cutting Depth : 22mm/ 0.86";Cutting Diameter : 18.5mm/ 0.73" Total Length : 71mm / 2.8";Total Net Weight : 68g Package Content : 1 x Hole Saw; 1 x Hex Wrench