Can be used for cutting glass, tile, vitrified tile (Note: Tempered glass can not be cut) .Suitable for cutting 3 ~ 15mm thick objects. You have to rely on a ruler such as a guide plate to draw a straight line. The handle of the knife and the glass cut at an angle of 45 degrees. High quality steel + high quality alloy blade, incisive and fast cut. Product Feature: 1. Can be used to cut glass, tile, vitrified tile (Note: Tempered glass can not be cut). 2. Suitable for cutting 3 ~ 15mm thick objects.3. High quality steel + high quality alloy blade, sharp and fast cutting. 4. You must rely on a ruler such as a guide plate to draw a straight line. The knife handle and glass cut at a 45 degree angle. 5. Use a center screw rod to cut to the rubber particle on the back of the glass or tile. 6. Tighten the glass or tile, then slowly tighten the cutter screw knob to make the cut. SpeciCATions: Item Type: Glass Cutting Tool Material: high quality steel, high quality alloy bladeSuitable for cutting thickness: 3 ~ 15mm Cutting range: glass, ceramic tile, vitrified tile (note: tempered glass cannot be cut) Note: The scribe's center of gravity should be kept vertical and applied evenly. Package list: 1 x knife 1 x plastic handle 2 x spare cutting blade 4 x rubber for screw rod