Klein Tools 85191 Conduit Reaming Screwdriver 5/16 tip 13 19 25 mm
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Measures coating hardness using the pencil scratch method at a 45 degree angle with three-point contact
The LANDTEK HT-6510P is a pencil hardness tester built for evaluating coating performance. It uses the pencil scratch method with a fixed 45 degree angle between the pencil core and the test surface. The instrument maintains three-point contact through two wheels and the pencil while sliding across the film.
This tool suits technicians who need a fast, economical way to determine film hardness on coatings. It is not for buyers who require indentation-based hardness scales such as Rockwell or Vickers. It is also not for users who need automated or digital readouts instead of visual pencil-mark comparison.
The decisive specification is the 45 degree angle between the pencil and the coating surface. This angle defines the test method and determines whether the results match the required standard for the coating being evaluated.
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| Product | |
|---|---|
| Brand name | LANDTEK |
| Model name | HT-6510P |
| Product type | Test Equipment |
| Color and finish | Red |
| In the box | |
| Number of items | 1 pack |
The tester holds the pencil at a fixed 45 degree angle to the coating while two wheels maintain contact, so the scratch track is consistent and the hardness value corresponds directly to the pencil grade that marks the film.
It uses the pencil scratch method, advancing the instrument across the surface so the pencil core draws a track; the hardest pencil that does not cut the coating defines the film hardness.
The unit requires a flat coated surface where its two wheels and pencil tip can all touch simultaneously, allowing it to slide and produce a scratch track for evaluation.
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