uxcell 20mm Cut Dia Serrated Edge Metal Hole Saw Cutter Tool Gray Product Name : Hole Saw;Cutting Diameter : 20mm/0.787'' Shank Width : 8mm/0.315'';Hole Saw Depth : 13mm/0.512'' Twist Bit Diameter : 5mm/0.197'';Total Length : 69mm/2.716'' Material : Metal;Color : Gray Net Weight : 44g;Package Content : 1 x Hole Saw