| Applicable materials | Hard or semi-hard brass, superhard aluminum alloy |
| Hardness range | 63~105HRF |
| Specimen size | Thick 0.6-8 inner diameter > 6mm |
| range | 0~20HW |
| Accuracy | 0.5HW |
| size | 220*160*30mm |
| Battery | 2*1.5AAA |
Warranty days: 730 days
1. For product quality problems caused by non-human products of instruments and equipment, the manufacturer will provide free warranty services during the warranty period;
2. There is no warranty period for fragile and consumable parts, and if you find product quality problems after receiving the goods, please apply for return and exchange within 7 days, and you will not wait for the overdue ones;