Feature:1. 10 Sizes to Meet Most needs10pcs hole cutters with dimensions 16mm(5/8\"), 18mm(11/16\"), 20mm(3/4\"), 22mm(7/8\"), 25mm(1\"), 30mm(1-1/8\"), 35mm(1-3/8\"), 45mm(1-3/4\"), 50mm(2\"), 53mm(2-1/8\"),10 pcs pilot drill bits and 1 pc hex key.A variety of sizes to meet your different needs.2. High-quality Alloy and CarbideThis hole saw is made from high-quality alloy and carbide tipped cutters, ensures its high hardness, rust proof and sturdy.The high-end carbide technology and optimized tooth geometry make hole saws low resistance and quick drilling.3. Wide ApplicationThese Hole Saw Sets provide quick and high-precise cuts into metal material, they are Industrial grade metal drilling hole cutter for stainless steel, metal, iron,plastics, aluminum, resin,etc.4. Easy to UseThe cutter head adopts a three-edged design to reduce chipping,TCT carbide steel tooth for quick cutting of neat and smooth round holes. They are suitable for hand held electric drill, stand motor-driven drilling machine and mobile ribbon type magnetism drilling machine.Specification:Features:10 Sizes to Meet Most needs10pcs hole cutters with dimensions 16mm(5/8"), 18mm(11/16"), 20mm(3/4"), 22mm(7/8"), 25mm(1"), 30mm(1-1/8"), 35mm(1-3/8"), 45mm(1-3/4"), 50mm(2"), 53mm(2-1/8"),10 pcs pilot drill bits and 1 pc hex key.A variety of sizes to meet your different needs.High-quality Alloy and CarbideThis hole saw is made from high-quality alloy and carbide tipped cutters, ensures its high hardness, rust proof and sturdy.The high-end carbide technology and optimized tooth geometry make hole saws low resistance and quick drilling.Wide ApplicationThese Hole Saw Sets provide quick and high-precise cuts into metal material, they are Industrial grade metal drilling hole cutter for stainless steel, metal, iron,plastics, aluminum, resin,etc. Easy to UseThe cutter head adopts a three-edged design to reduce chipping,TCT carbide steel tooth for quick cutting of neat and smooth round holes. They are suitable for hand held electric drill, stand motor-driven drilling machine and mobile ribbon type magnetism drilling machine.Note:1.Remember to add coolant during continuous high-speed drilling.2.Dimensions are manually measured, there may be a small error, please refer to the actual product you received.Specifications:Color:SilverMaterial: Alloy + CarbideCutter Size: 16mm(5/8"),18mm(11/16"),20mm(3/4"),22mm(7/8"),25mm(1"),30mm(1-1/8"),35mm(1-3/8"),45mm(1-3/4"),50mm(2"),53mm(2-1/8")Item Size: 90*16mm-90*53mm/3.5*0.6-3.5*2.1inItem Weight: 1.5kg/52.9ozPackage Size: 205*155*115mm/8.1*6.1*4.5inPackage Weight: 2kg/70.5ozPacking List:10 * Cutter1 * Hexagonal wrench1 * Storage boxPackage List:10 * Cutter1 * Hexagonal wrench1 * Storage box