General description This is a high-quality cobalt hole saw designed for various materials including steel, brass, bronze, cast iron, aluminum, wood, and plastics. It features a durable steel construction with 8% cobalt content, ensuring long-lasting performance. Technical specifications Diameter: 57mm Material: Steel with 8% cobalt content Maximum cutting depth: 35mm Compatibility and accessories Requires a compatible hole saw arbor for assembly Installation Attach the hole saw to a compatible arbor Secure the assembly in a drill or drill press Usage Use appropriate drilling speed based on material Apply steady pressure during cutting for best results