Standard diamond scribing scratch tool – accurate, long-lasting scribing tool provides a narrower scribe line to improve your diamond test.
Corundum Scratch Pen Diamond Tester.
Because of corundum’s hardness (pure corundum is defined to have 9.0 on the Mohs scale), it can scratch almost every other mineral.
Order today contact us on 0610078100
5 X Pens including shipping overnight in South Africa R500.00