Packaging content: 1 pencil oil-filled hard alloy tip glass cutting tool with a 2-6mm cut head, 1 6-12mm cut head, 1 12-20mm cut head, 1 round handle with suction cup heavy-duty circular glass cutter, 1 marker, 1 20cm steel ruler, and 1 screwdriver. Round glass cutting machine: The circular handle is made of ABS plastic. The body is made of polished iron with clear scale markings. The diameter adjustment range is 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 ensures continuous lubrication of the 360-degree rotating alloy cutting wheel for sharp, clean cuts. Anti-slip handle provides comfortable grip. Three interchangeable cutting heads fit glass thicknesses of 2-6mm, 6-12mm, and 12-20mm. Includes a screwdriver for easy blade replacement. Widely used: This glass cutting kit is suitable for cutting colored glass, crystal mosaics, window panes, tiles, mirrors, porcelain, glass bottles, and DIY glass crafts. Ideal for both beginners and experienced glass craft enthusiasts. Reminder: There may be a small amount of oil on the cutting wheel upon delivery. This is normal and helps ensure smooth operation and protection of the tool. Color: As shown Material: Metal Package Contents: 7 PCS Glass Cutter Tool Set Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3cm.