XCAN 102pcs Metal Cutting Disc with 1/8'' Mandrel Metal Cut off Wheel,Abrasive Disc,Circular Saw Blade for Dremel Rotary Tool Features: 1. The cut-off wheel is reinforced with fiberglass for increased durability and used for cutting metal including hardened steel. 2. Ideal for cutting, grooving and trimming all kinds of metal 3. May also be used on other materials-including thin wood, plastics and ceramics 4. Cut bolts or screws or make slots in rusted or stripped bolts and screws User Tips: 1. The cut-off wheel cuts only along its edge. Do not attempt to sand or cut curved holes with them. 2. Secure objects to a stable surface while working. 3. Hold the tool so that the wheel is at a perpendicular angle to the material being cut. 4. Keep a light touch, as the wheel will break under too much pressure. If chattering occurs, increase speed. 5. Plastics require very slow speeds, because they tend to melt at the contact point. Wood requires low speeds also, always experiment on a scrap first. Package Including: 102pcs Fiber Cutting Disc