Features • Versatile Size Range: Adjust the hole diameter from 30mm to 300mm, allowing you to create precise cuts for various projects with ease • Durable Carbide Tip: Featuring a sharp, reusable carbide tip that maintains its edge even after grinding, ensuring long-lasting performance • Robust Alloy Steel Construction: Made from heat-treated alloy steel, this tool is perfect for cutting through thin-film materials like wood, plastic, and gypsum boards • Easy Compatibility: Designed for seamless installation on both electric drills and bench drills, enhancing usability for all skill levels • Ideal for Multiple Applications: Perfect for DIY enthusiasts and professionals, this tool excels in woodworking, crafting, and home improvement tasks Features: 1、Sharp and carbide tip can be reused after grinding. 2、The hole diameter can be adjusted by the distance from the drill bit tip to the center. 3、Alloy steel with heat treatment can be used for thin-film plate. 4、Can be installed and operated on the electric drill and bench drill. 5、Widely used in wooden board, plastic board, gypsum board, etc. Specification: Features: 1. Sharp and carbide tip can be reused after grinding. 2. The hole diameter can be adjusted by the distance from the drill bit tip to the center. 3. Alloy steel with heat treatment can be used for thin-film plate. 4. Can be installed and operated on the electric drill and bench drill. 5. Widely used in wooden board, plastic board, gypsum board, etc. Specification: Material: alloy steel Color: black Shape: airplane Hole diameter range: 30-300mm / 1.18-11.81in Weight: Approx. 534g Package Includes: 1 x Adjustable Hole Saw Drill Bit Set Note: 1. Before starting , check if all the screws are tightened. 2. Be sure to hold it during to prevent accidents. 3. When replacing the drill, it is necary to cut off the power. 4. Cuttings generated during drilling should be cleaned by special tools rather than hand. 5.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List