Specifications
| Strength Measurement Range | 20~60 Mpa |
| Nominal kinetic energy | 2.207J |
| Spherical radius of the end of the putter | 25±1.0 mm |
| pointer length | 20.0±0.2 mm |
| Pointer friction | 0.5~0.8 N |
| Hammer impact length | 75±0.3 mm |
| Hammer take-off position | Scale "0" |
| Hammer disengagement position | Scale line "100" mark |
| Working length of spring | 61.5±0.3 mm |
| Stiffness of spring | 7.85±0.40 N/cm |
| Steel anvil ratio constant | 80±2 |
| size | 270x55x55 mm |
| Weight | 1040 g |
Packing list
host x1, portable case x1, operation manual x1.
After-sales instructions
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;
[Note] For after-sales services outside the Chinese mainland, if the instrument requires repair, the shipping and possible associated taxes shall be borne by the sender. Generation address of the manual: http://en.nbchao.com/p/5125/Specification.html , which is only used by users who purchase commodities from the NBCHAO.