8" Wheeled Mosaic Pliers Suitable for cutting mosaic tile, glass, wall and floor, stained glass and mirror. Excellent pliers for cutting and shaping with your craft product. Instructions: Step 1: Place the tiles on a flat surface. Then use the scoring part of this mosaic nipper to cut a scratch. Step 2: Use the nipper part of this mosaic nipper and it will break the tile. Step 3: Break the tile into two pieces. High quality wheel Please note that this wheel can be rotated. Rotating wheel can cut scratches better. Limit screw Spring is removable, spring action reduces hand and wrist fatigue for easy one-handed operation < p> The limit screw design allows you to control the amount of pressure applied into the glass or mosaic tiles. Anti-rust oil A little oil on the surface to keep the clamp free from rust, it will not affect the use, you can wipe it with a rag or a towel. About: More than 60 years of original equipment manufacturing experience, can provide stable high quality products.