NZG31 Petrol Engine Rail Drilling Machine This machine is an indispensable tool for railway maintenance construction and emergency repair operations It uses a hollow drill bit a screw nut clamping mechanism with quick opening function fast clamping accurate positioning fast drilling simple operation and safety use Place of Origin Hubei China Type Rail drilling Machine Material Stainless Steel Dimensions L x W x H mm 800340400 mm Brand Name Linkage Product name Rail Cutting Machine Place of Origin Hubei Idle Rev 270rmin Borehole diameter 9836mm Power of petrol engine 12kW Spindle RPM 250 285 rmin Drilling time 25s Specification linear velocity 400 32 4 70m s Engine type fourstroke petrol engineHonda weight 17kg