used for cutting wood , plastic and other soft materials with diameter from 19mm to 152mm 13PC Carbon Steel Hole Saw SetHole Saw Size:3/4"(19mm), 7/8"(22mm), 1-1/8"(29mm), 1-1/4"(32mm), 1-1/2"(38mm), 1-3/4"(44mm), 2"(51mm), 2-1/2"(64mm)2PC Arbors1PC Hex Key Wrench1PC Wood Flat Bit : 1"(25mm)Packing datas: QTY: 30SETS/CTN G.W/N.W: 18/17KGS MEAS.:40x33x25CM 13PC Carbon Steel Hole Saw Set