When given pressure on the glass cutter, the automatic oil injection system keeps the grinding wheel lubricated every time you cut, making the cutting head smoother and sharper.So Please make sure add oil to this glass cutter before using. When using a glass cutter, keep the handle at a 45-degree angle to the glass and always score from edge to edge.If you have zero experience, just search for glass cutting videos . Those people who say this glass cutter doesn't work either didn't add lubricant or they weren't striking the glass/mirror at the correct angle. You don't need to use a lot of force; you just need to make sure you are starting at the edge of whatever you are cutting. When you hear the "zipper" sound, you are doing it correctly! Have fun! The glass cutter cuts accurately with a steady hand, so you'd better to do quite a few practice cutting first. Glass cutters actually score the glass instead of cutting it. Never scribe the same spot twice, otherwise the cutter wheel may be damaged. Glass cutters cannot be used to cut high hardness objects such as tempered glass, marble, etc. When cutting mirrors with our glass cutter you must score the glass side up and not the foil side on the bottom, if you score the foil side it may only score the foil and not the actual glass. Specifications: Product Name: Glass Cutter Size: 0.4"×0.4"×6.7" weight: 130g/4.6oz Color: Golden Material: Carbide cutter wheel, aluminum handle Cutting Range: 2-20mm Package Includes: 1 Aluminium Handle 1 × 2-6mm Cutting Head 1 × 6-12mm Cutting Head 1 ×12-20mm Cutting Head 1 × Oil Dropper 1 × ScrewdriverPlease kindly noted that our glass cutter comes with an oil dropper, but no oil in it. Please make sure to add oil to the glass cutters before using.Any question,please contact us and we will give reply within 24 hours. Wide application: The glass cutter tool is suitable for different glass , mosaic, tiles, mirror, stained glass.Packed in a beautiful plastic box,our glass cutters is a ideal gift for Christmas, Thanksgiving, Father's Day, Mother's Day and other important festival. Different Size Cutting head:Our glass cutting kit have 3 different cuttings size heads – 2-6mm, 6-12mm and 12-20mm.Screwdriver is included,if you want to cut different thickness glass,just use it to change cutting head.Our glass cutter has a textured barrel and the stopper at the back is unscrewed to insert the oil (includes oil dropper). Easily Use:Our glass cutters tools definitely works and it's such a must-have. If you have zero experience, just search for glass cutting videos. Those people who say this glass cutter doesn't work either didn't add lubricant or they weren't striking the glass/mirror at the correct angle. You don't need to use a lot of force; you just need to make sure you are starting at the edge of whatever you are cutting. When you hear the "zipper" sound, you are doing it correctly! Have fun!. High Quality:Alloy glass cutter wheel, sharp cutting, thickened axis, will not break the axis under stress.Even after dozens of scoring and the cutting head of our glass cutting tool never dulled or broke.Date First Available: August 27, 2022. Country of Origin: China. Manufacturer: Hxexplore. Item Weight: 4.8 ounces. Best Sellers Rank: #109,274 in Arts, Crafts & Sewing. Customer Reviews: 3.4 3.4 out of 5 stars 13 ratings 3.4 out of 5 stars. : B0BC4LMF5V. Item model number: HX004. Product Dimensions: 7.8 x 1.8 x 1.2 inches.