This newly-innovated product combines the characteristics of cut off wheel and sanding disc. It has better cool action and make the cutting and sanding safer & more precise due to its special design (open mesh). The different size of the open mesh could be available. Its major differences with the conventional cut off wheel and sanding disc are as below: 1. Combine Cutting & sanding into one. 2. Flexible & fast cutting and sanding 3. Cutting & Sanding are safer and more precise. 4. Excellent visibility of the surface being ground. 5. Reduce the heat at the point of contact. 6. Multiple Surface Applications?Good for all steels, iron, soft metals, woods and more.