Feature:1. BI METAL AND EXCELLENT QUALITY: Saw blades are made of bimetallic material, the cutting part is made of high hardness(69~81HRC), high strength hard alloy steel, 2mm thick, has the advantages of wear resistance, better toughness and long usage life2. HIGH ACCURACY AND FAST CUTTING: The tooth of the saws has been optimized and improved many times, possess higher cutting efficiency, bring cleaner and smoother cutting, higher accuracy, the chip removal groove added on the side of the hole saw can discharge the chip rapidly3. WIDE APPLICATIONS: The hole saws are durable and reliable to use on workpieces, suitable for hole cutting on thin metal, hard wood, PVC board, plastic plate, gypsum board, etc.4. 11 HOLE SAWS AND 7 ACCESSORIES: Including 11pcs size saw blades of 19mm(3/4in), 22mm(7/8in), 25mm(1in), 29mm(11/8in), 35mm(13/8in), 40mm(19/16in), 44mm(11/4in), 51mm(2in), 54mm(21/8in), 57mm(21/4in), 64mm(21/2in), maximum cutting depth of 40mm, with 2pcs mandrels, 4pcs drill bits for easy replacement, and 1pc hex key5. CONVENIENT STORAGE: Woodworking hole saw set come with a sturdy and small storage box, which is very convenient for you to store and easy to carrySpecification:Item Type: Bi Metal Hole Saw KitColor: RedMaterial: High speed steel11 Sizes of Saw Blades: 3/4, 7/8, 1, 1-1/8, 1-3/8, 1-1/2, 1-3/4, 2, 2-1/4, 2-3/8, 2-11/16 inches(19mm, 22mm, 25mm, 29mm, 35mm, 38mm, 44mm, 51mm, 57mm, 60mm, 68mm)Maximum Cutting Depth: Approx. 40mm / 1.57in.Package List:11 x Double Metal Hole Saw Blades2 x Mandrel4 x Drill Bits2 x Hex Wrenches1 x Screw(with washer)1 x Storage Box