Fowler Hardness Tester File Set

$190.00

Fowler's Hardness Tester File Set 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 (4.3Ø x 175mm).

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 (60 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).

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