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Mitutoyo 11AAE902 | HH-V400 Impact Device HLD | D scale, up to 68 HRC, 150 g
The HLD impact device for the HH-V400 Leeb hardness tester (11AAE902) is the standard D-type device that Mitutoyo says covers most applications. It uses an impact hammer with an integrated carbide-ball tip, D scale (ASTM A 956).
Key features
- Type HLD, mass 150 g
- Measures hardness up to 68 HRC
- Specimen minimum 5 mm and 5 kg, or 0.1 to 5 kg when secured to a massive base
- Spacing: 5 mm from edge, 3 mm between points
- Surface roughness of the specimen Ra 2 µm or less
The display unit identifies the HLD device automatically, so no manual selection is needed.
- Specifications
- Downloads
| Part Number | 11AAE902 |
| Brand | Mitutoyo |
| Model | HH-V400 |
| Impact Device Type | HLD |
| Hammer | Impact hammer with integrated carbide-ball tip |
| Scale | D scale (ASTM A 956) |
| Maximum Hardness | Up to 68 HRC |
| Mass | 150 g |
| Standard | Mitutoyo standard (ISO 16859-1/-2, ASTM A956/A956M-17a) |
| Min. Specimen Thickness | 5 mm |
| Min. Specimen Mass | 5 kg (0.1 to 5 kg on a massive base) |
| Surface Roughness | Ra 2 µm or less |
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