Features: The tool is made of high-quality material, which is strong, wear-resistant, and durable after anodic oxidation treatment. Carbide circular-arc blades ensure a smooth cutting experience. Blade specification: 15 x 15 x 15 x 2.5 mm, 30R150. When the blade becomes dull, it can be rotated to restore sharpness. The blade can be rotated four times, making it economical and practical. Easy to use: loosen the screw, adjust the red tool holder to the desired diameter, then re-tighten the screw for immediate use. Widely used in woodworking, furniture making, home DIY, and other applications.Description: Name: Adjustable milling tool set Circular hole specifications: 8mm, 9mm, 10mm, 12mm, 15mm, 16mm, 18mm, 20mm Material: Metal Color: Black + red Package Contents: 1 x Adjustable milling pin tool set (1 x Adjustable milling tool with pre-installed blade, 1 x T20 blade wrench, 1 x 5mm adjusting wrench, 3 x screws) Note: Light reflection and different displays may cause slight color variations between the item in the picture and the actual product. Measurement error allowance: +/- 1-3 cm. Package includes only the items listed above; other products are not included.