Six-Piece HRC40-65 Hardness Testing File Set

Make a preliminary comparison of metal hardness with six marked testing files covering HRC40 to HRC65.

✅ Compare the surface with stepped references - Six file grades provide a practical way to bracket an approximate hardness response.

✅ Select the marked grade more easily - Colour-coded handles and hardness markings help distinguish the files during a check.

✅ Keep the references together - An Oxford-cloth pouch groups the six files for storage and transport.

Use the file response as a preliminary check

Hardness-testing files are used to compare how a suitable surface responds to the different file grades. Working through the references can provide a rough indication before a more formal test is needed.

Use the specified method on an appropriate surface and allow for the mark the check may leave. A file comparison is not a certified laboratory hardness result, and coatings, surface condition and technique can affect the response.

Technical details

• Product: hardness-testing file set
• Quantity: six files
• Marked range: HRC40-HRC65
• Construction: carbon steel
• File length: approximately 18 cm
• Storage: Oxford-cloth bag
• Bag dimensions: approximately 20 × 5 × 3 cm

Add a portable preliminary hardness check to your metalworking toolkit.