1. Glass Running Plier has an Adjustable set screw that allows you to control the amount of pressure applied, the set screw is easy to adjust, and you can use them on different thicknesses of glass; 2. Breaker Grozer Pliers are quality designed to help break glass along a score line or can be turned over and Grozer pliers are ideal for nibbling glass away from edges; 3. Mosaic Wheeled Nippers are the perfect tool to quickly and easily cut precise shapes. Ideal for fixing broken tiles, removing tiny points, and some special cutting in the corner This glass cutters tools kit includes 8 inch Glass tile nippers x1, 8 inch glass running plier x1, 6 inch glass breaking plier x1, glass cutter x1, 2-6mm cutter x1, 6-12mm cutter x1, 12-20mm cutter x1, Tungsten Scribe Engraving Penx1, Steel Rulerx1, cut- gloves x1, oil dropper x1, screwdriver x1, replacement wheel x2, hex wrench x1, zipper bag x1. A total 16pcs are what you need for mosaic tile beginners. for Stained Glass, Tiles, and Mosaic Cutting Cutting wheel of the tile nippers is made of YG8 tungsten steel, All of the pliers with Ergonomic handles for anti-slip and comfortable grip. These stained glass kits can easily and quickly cut mosaics, mirrors, stained glass, window glass, glass tiles, porcelain, and, floor ceramics The 16PCS Stained Class Cutters Tools Kit for crafts, mosaic, tile, mirror, stained glass cutting, ceramic, glass tile, window glass. Suitable for various DIY projects and home decoration glass cutting. Glass cutting kit are placed in a nice canvas bag, You can give it as a gift to your friends, family, colleagues, relatives, neighbors, lovers, and other DIY enthusiasts Colour:As Shown Material:Metal Package Contents: 1 set * glass cutters tools Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.