1. Ergonomic Design: Handle of the glass cutter is made of iron alloy frosted particles, and the sturdy pencil-type metal handle has non-slip effect, comfortable grip, and it is economical and durable for a long time. > 2. Carbide Cutting Wheel: Diamond alloy cutting wheel cuts cleanly and the professional glass cutting cutting wheel has an extended cutting range of 2 to 20mm. 3. Alloy Percussion Head: Professional diamond glass cutting head is made of metal, which is used to cut glass and break glass into scratches in glass. 4. AppCATion: Glass cutter has a total of 3 spare cutting heads (2-6mm / 6-12mm / 12-20mm), suitable for glass with a thickness of 2mm to 20mm. Depending on the thickness and texture, you can choose the right blade to increase strength. 5. Compact: Manual glass cutters are lightweight, durable and designed for performance, so you can easily carry them with you. Glass cutters can be applied to glass, diamonds and minerals and are ideal for housework and cutting. Product Features: When the diamond tip of the glass cutting tool is pressed, the oil will be filled automatically, and the oil will be filled automatically when using, and the oil will not stop when it is not not used. (For beginners it is difficult to control the intensity and a lot of oil will leak out. During the practice phase it is recommended not to fill the knife handle with oil.) Please use a cotton swab or small cloth soaked in oil to gently wipe the grinding wheel, then cut the glass. When the amount of oil is insufficient, you can rub the oil several times. The diamond alloy glass cutting wheel cuts strongly, and the cutting wheel has a wide cutting range. Product Details Remove the bit screwdriver Prepare a new cutting head Tighten the screws Complete replacement of the cutting head Note: 1. Choose the right slide according to the thickness of the glass. 2. Glass knives cannot cut high hardness objects such as tempered glass, marble, quartz. 3. Do not repeat the mark at the same position, otherwise the cutting wheel may be damaged. 4. When using a glass cutter, you should operate it on a flat surface. It is best to try several times on a piece of broken glass to practice. Product Parameters: Material: Carbide Cutting Wheel, Aluminum Handle. Outer packaging size: 22 * 12.5 * 1.5cm Handle length: 17.5 cm Total weight: 205g Color: black Scope of appCATion: cutting glass plates, mirrors, floor tiles, ceramic tiles, etc. Product list: 1 * glass cutter, 1 * engraving pen, 1 * screwdriver, 1 * dropper, 2 * replacement cutting head