Testing Procedure:
Run the Black file ( 65 HRC) Over test material. If it Marks the material, the material is less than 65 HRC
Try the Blue file (60 HRC) if it does not mark the material, It indicates that the file is softer than the material and is
Between 60 and 65 HRC
If the Blue file (6 HRC) marked the material, continue Testing with the Green (55 HRC), Light-Green(50 HRC) etc. until the material is not marked The approximate hardness of the material is between the file that marks the material and the file that slides over the material
Included chart also shows the appropriate Vickers Hardness (HV)
Fowler’s Hardness Tester File Set is an inexpensive, easy-to-use method for determining material hardness by sliding the file cross the object’s surface. Six color-coded files indicate hardness from 40 to 65 HRC. Conveniently packages in a leather-like case with a Velcro lined flap, the files are approximately. 157” in diameter and 7” in length ( 4.30 X 175 mm)
Established in year 1984, we, “Fine Spavy Associates & Engineers P. Ltd.”, are among the prominent organizations engaged in manufacturing, supplying and exporting Material Testing Machines.
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 Over test material. If it Marks the material, the material is less than 65 HRC
Try the Blue file (60 HRC) if it does not mark the material, It indicates that the file is softer than the material and is
Between 60 and 65){kind=link}