National Flooring Equipment Concrete Hardness Tester
Unlike other mineral hardness testing tools, the 8270 is made of metals and alloys of hardness values equal to 2 through 9 on the Mohs hardness scale, so they can be easily ground to sharp points that will not break off.
Made of metals and alloys
Wooden case included
Hardness values equal to 2 through 9 on the Mohs hardness scale
Set includes 8 points, streak plate for testing color, hardness plates (3.5 and 5.5), magnet for detecting magnetic rock, grindstone to keep points sharp, hardness tables, and instructions