Kennedy Hardness Testing Files

Set of 6 precision testing files with specially curved tips which are designed to reach into bores, slots and grooves, which cannot otherwise be tested with conventional types of hardness testers. Each file has a non-slip grip colour-coded handle for hardness assessment, with the Rockwell value printed on each. Files range from HRC 40 through HRC 65. Set comes complete with instructions and conversion chart Rockwell C to Vickers. Provides a quick and inexpensive way of testing workpiece hardness.