General description The Adjustable Hole Saw is a versatile tool designed for drilling holes in various materials such as plywood, wood, plasterboard, acrylic, and fiber cement boards. It features an adjustable diameter, allowing for drilling holes ranging from 30 mm to 120 mm, making it ideal for installations like spotlights or built-in speakers. Technical specifications Material: Chrome Vanadium Steel Color: Black Drilling diameter: 30-120 mm Maximum cutting depth: 30 mm Weight: 490 g Installation Mounting on a drill with a hexagonal shank. Ensure that all screws are tight before starting. Usage Hold the tool firmly during operation to avoid accidents. Before drilling, ensure that the two pins are set to the same diameter. Start with a low initial rotation speed. When replacing the drill bit, turn off the power. Use special tools to clean chips generated during drilling, do not clean manually.