High quality hole saw kit for drilling round holes easily and quickly Perfect for hole  perfect to make any holes you need.High precision, smooth cutting edges, especially impact resistance, wear resistance, cutting depth 25 mm Hole saw sizes 19mm / 0.75 inch, 22 mm / 0.87 inch, 29 mm /n1.14 inch, 32 mm / 1.26 inch, 38 mm / 1.50 inch, 44 mm / 1.73 inch, 51 mm /n2.01 inch, 64 mm / 2.52 inch Safety and durable Carbon Steel, Heat Treated. The special gearndesign makes the hole more accurate.nnntHigh speed steel teeth for fast and clean cutsnnntNote nnntSuitable for cutting wood, thin sheet metal and thin alloys; don’t try it to hard material.