China 31mm Electrict Drill Nzg-31 Internal Combustion Steel Rail Drilling Machine , Find details about China Rail Drilling Machine, Drilling Machine from 31mm Electrict Drill Nzg-31 Internal Combustion Steel Rail Drilling Machine
power | 1.2kw |
Rotating speed | ≥270rpm |
Drilling diameter: | φ31 mm |
Drilling time | ≤40s |
Machine weight | 17kg |