General description High-quality bi-metal hole saw designed for cutting through various materials such as metal, plastic, stainless steel, steel, and wood. It features a durable cobalt steel construction with bi-metal teeth for long-lasting performance. The product includes a protective box for storage and handling. Technical specifications Diameter: 51 mm Cutting depth: 38 mm Tooth pitch: 4/6 TPI (teeth per inch) Material: Cobalt steel with bi-metal teeth Compatibility and accessories Compatible with standard electric drills and drill presses Includes a cardboard box for packaging and instructions Arbors to suit (available separately) Installation Attach the hole saw to a compatible drill using the arbor or mandrel provided Ensure the drill is set to the appropriate speed for the material being cut Secure the workpiece properly before drilling Usage Mark the desired hole location on the material Start drilling at a low speed to establish the cut Increase speed gradually while