Packaging content: 1 pencil oil-filled hard alloy tip glass cutting tool, 1 piece with 2-6mm cutting head, 1 piece with 6-12mm cutting head, 1 piece with 12-20mm cutting head, 1 round handle with suction cup heavy-duty circular glass cutter, 1 scriber, 1 20cm steel ruler, and 1 screwdriver. Round glass cutting machine: The round handle is made of ABS plastic. The body is made of polished iron with clear scale markings. The diameter can be adjusted from 6.4cm (2.52 inches) to 40cm (15.7 inches). A strong suction cup securely holds the center of the glass for precise circular cuts. Pencil-type glass cutting tool: Features an automatic oiling system that maintains lubrication for the 360-degree rotating alloy cutting wheel, ensuring sharp and clean cuts. Non-slip handle provides comfortable grip. Includes three interchangeable cutting heads suitable for glass thicknesses of 2-6mm, 6-12mm, and 12-20mm. Comes with a screwdriver for easy blade replacement. Wide application: This glass cutting kit is suitable for cutting colored glass, crystal mosaic, window glass, tiles, mirrors, porcelain, glass bottles, and DIY glass crafts. Ideal for both glass craft enthusiasts and beginners. Note: There may be some oil on the surface of the product, which is normal. It helps the tool operate smoothly and protects against corrosion. Color: As shown Material: Metal Package Contents: 7 PCS Glass Cutter Tool Set Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement allows an error of +/- 1-3cm.