WHAT YOU WILL GET: 1 x Bi-metal hole saw blade, 1 x chuck, 1 x drill bit, 1 x storage box. Each hole saw kit is individually packaged. Diameter: 100mm. Maximum cutting depth: 25mm.HIGH PERFORMANCE: The hole saw features a bi-metal construction with M42 high-speed steel cutting edge, heat-treated for durability. Offers high temperature resistance, minimal deformation, and extended service life.CUTTING DESIGN: Arc-shaped tooth design ensures concentric precision, uniform tooth edges, impact resistance, and anti-drop performance. Non-binding sharp edge design allows for smooth cutting. Drill spring automatically ejects the core after drilling.WIDE APPLICATION: Suitable for cutting metal pipes, steel, castings, metal alloys, aluminum, plastic sheets, galvanized pipes, fire-fighting pipes, wood, plasterboard, and similar materials. Compatible with bench drills, pillar drills, hand drills, and other power drills.NOTE: When using the hole saw for extended periods, maintain an appropriate rotational speed. Excessive speed (above 1000 RPM) may cause premature wear. The product has a thin protective oil coating (for anti-oxidation and rust prevention)—avoid contact with skin and wipe off after use. Inspect the hole saw before each use.100mm Hole Saw, Bi-Metal Cutting Tool Ideal for drilling wood, iron, aluminum alloy, and other compatible materials. Material: M42 HSS Steel Cutting Depth: ~25mm Total Bit Length: ~80–100mm Please Note: 1. Requires use with an electric drill (not included). 2. Avoid blade skipping during operation to prevent damage to workpiece surface. Package Includes: 1 x 100mm Hole Saw Set