52-760-000 Hardness Tester File Set
The 52-760-000 is an inexpensive, easy-to-use method for determining material hardness by sliding the file across the object's surface. Six color coded files indicate hardness from 40 to 65 HRC. Conveniently packaged in a leather-like case with a velcro lined flap, the files are approximately .157" in diameter and 7" in length (4.3mm diameter x 175mm).
The 52-760-000 is set up in a six color-coded system.