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The NewSonic Leeb Hardness Test Blocks are made of tool steel and are 1150 x 330 mm in diameter. Leeb Test Blocks are one-side factory calibrated and include a certificate. HLD values are 520 ±15, 630 ±15, 730 ±15, 830 ±15, and 880 ±15.
NewSonic Two-fold DAKKS calibrated blocks are also made from tool steel and have a diameter of 89 x 55 mm. DAKKS calibration may be added to other blocks as well.HLD values for the two-fold blocks are 490 ±15, 660 ±15, and 780 ±15.
| Block | HLD Value | HV Value |
| NS-215060 | 520 ±15 | ca. 245 |
| NS-215061 | 630 ±15 | ca. 370 |
| NS-215062 | 730 ±15 | ca. 560 |
| NS-215063 | 830 ±15 | ca. 770 |
| NS-215064 | 880 ±15 | ca. 940 |
| Dimensions | 1150 x 330 mm | |
| Block | HLD Value | HV Value |
| NS-215080 | 780 ±15 | ca.650 |
| NS-215070 | 490 ±15 | ca. 210 |
| NS-215071 | 660 ±15 | ca. 420 |
| NS-215072 | 780 ±15 | ca. 650 |
| Dimensions | 89 x 55 mm | |