| Code | Application | Digital | Thickness requirement of flat workpieces |
|---|---|---|---|
| ISHW-D20 | for aluminumalloy general use | yes | 1~6mm |
| ISHW-D21 | for aluminum alloy thick workpieces | yes | 1~13mm |
| ISHW-D22 | for aluminum alloy small tubes | yes | 1~6mm |


To measure the hardness of soft metals such as aluminum profiles, tubes, plates, aluminum parts and other soft metals
Easy to read, with peak hold function
According to ASTM B647-2023
| Code | Application | Digital | Thickness requirement of flat workpieces |
|---|---|---|---|
| ISHW-D20 | for aluminumalloy general use | yes | 1~6mm |
| ISHW-D21 | for aluminum alloy thick workpieces | yes | 1~13mm |
| ISHW-D22 | for aluminum alloy small tubes | yes | 1~6mm |
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