Specifications
| section view | 25，40，70，100 |
| size | 87x87x2.5mm/3.43x3.43x0.1inch |
| Weight | 60g/212oz |
Packing list
Surface roughness comparator x1
After-sales instructions
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/35366/Specification.html , which is only used by users who purchase commodities from the NBCHAO.