2-9 Mohs Hardness Scratch Tester Pen Kit with Stainless Steel Picks, 4 Pack, Storage Box, Pro-Grade Tool for Testing Minerals, Jewelry, Jade, Glass and Gemstones, Handy, Pocket-Ready Hardness Tester for DIY Hobbyists
✔️ 4 stainless steel hardness pens in a boxed kit with magnet storage
Mohs hardness tester kit lets you estimate the scratch hardness of surfaces by using graded tips. It's commonly used on minerals, gemstones, glass, ceramics, tiles, and other materials in hobby setups or field work.
✅ Made of pure 304 stainless steel, each pen is about 155mm long
✅ Each pen features ends with different hardness: 2&3, 4&5, 6&7, 8&9
✅ Boxed kit includes a grindstone striped plate magnet and testing plates of aluminum, brass, and glass
✅ Suitable for gemstone, ceramic tile, floor, glass, mobile phone screen, mineral, concrete
💡 What is a Mohs hardness tester pen kit used for in mineral testing and jewelry appraisal? This handy tool helps estimate the hardness of surfaces by scratching with graded tips. - Test minerals, glass, gemstones, ceramics, and other materials
- Handy for DIY hobbyists and field inspections
- Four pens with Mohs scale tips 2-9 and a sturdy storage box