This tool should be used with your glass cutter machines to cut glass, ceramic and mirror more efficiently. If you are looking for this accessory, you can give it a try Features: Preferred Material: This cutter heads is made of alloy material, and the gasket is made of high carbon steel, superior wear and corrosion resistant, not easy to rust and can provide a long service time. The Laser engraved process, its angle clearly engraved on it, is easier to read when using. The gasket with thickening and widening processing, when using can give you a more stable use experience. This tool is suitable for cutting glass, ceramic, mirror and other glass material items, has a wide application. 5 types optional: There are 5 different types for you to choose from: 135, 140, 145, 150, 155. The 135 type is suitable for 1-5mm thickness glass, the 140 type is suitable for 3-8mm thickness glass, the 145 type is suitable for 5-10mm thickness glass, the 150 type is suitable for 8-10mm thickness glass, and the 155 type is suitable for 10mm glass. Specifications: Material: alloy+ high carbon steel Type: 135, 140, 145, 150, 155 (optional) Cutter wheel diameter: 4mm / 0.2in Shank diameter: 4mm / 0.2in Length: 20mm / 0.8in Package size: 50 * 30 * 10mm / 2.0 * 1.2 * 0.4in Package weight: 15g / 0.5ounce Packing list: 1 * Glass Cutting Heads