Features & Benefits
- High-quality solid pen tip and metal holder to prevent breakage.
- Tests hardness levels from 5 (apatite) to 9 (corundum).
- Versatile use for gemstones, tiles, glass, mobile screens, and more.
- Compact aluminum alloy storage box for easy portability.
- Non-destructive method for approximate hardness identification.
- Ideal for professionals and hobbyists alike.