Tct 14 Pcs Carbide Hole Saw Kit For Hard Metal, Heavy Duty Carbide Tungsten ??Packing includes?Size: 19mm(3/4"), 22mm(7/8"), 25.5mm(1"),29mm(1-1/8"), 32mm(1-1/4"), 35mm(1-3/8"), 45mm(1-3/4"), 51mm(2"), 54mm(2-1/8"), 60mm(2-3/8), with 2*Extra Pilot Drill Bits and 2*L-Wrench. ??Excellent Quality? Made of high-quality TCT Carbide (Tungsten Carbide Tipped Cutters), Having the advantages of high hardness, rust prevention, and durability. ??Apply to?This Carbide Hole Saw Set is suitable for various hard materials, such as stainless steel, mild steel, iron, aluminum, copper and other metal materials, Also applicable to FRP, wood and plastic etc. ??Easy to Use?Suitable for hand held electric drill, mobile ribbon type magnetism drilling machine and stand motor-driven drilling machine, Adding coolant during continuous high-speed drilling, It can prevent the drill bit from burning or breaking, Increase the service life of the product. ??Exquisite Gift?This Carbide Hole Saw kit with an exquisite aluminum box, making it the perfect gift for yourself, family, and friends, If you encounter any problems or are not satisfied with the products while using our Carbide Hole Saw set , please feel free to contact us.