Description: Designed for Cutting Steel, Stainless Steel, Copper, Brass, Aluminum, Fiberglass, Wood and so on. Perfect for Installing Locks, buttons in doors and cabinets. Providing different sizes Hole saw for your different needs. High speed steel hole saw kit can drill precise round holes easily and quickly. Including 5 Drill Bits and 5 Hex wrenches. Specification: Material: High-Speed Steel Shaft Diameter: 8mm Product Dia. : 16/18.5/20/25/30mm approx. 0.63/0.73/0.79/0.98/1.18inch Package Includes: 1 Set Hole Saw Cutter Drill Bit Note: When use on the hard material, such as steel, ceramic tile, pls use water to low the temperature, or drill can be broken by high temperature
