1. Cutter wheel is imported from Japan and made of hard-alloy steel, not easy to break even though drop it from 1 meters height.
2. It can cut 100000 meters in cutting glass.
3. The handle is made of high quality plastic, strong enough. No crack when knocking with a hammer.
4. Work fast and smoothly, reducing the grinding cost and making the cutting line near perfect
5. three sizes of cutter blade: T (6-12mm) , S (15-19mm) , No mark (2-8mm)