You can save time and effort and get satisfactory profit, can get satisfying economic benefit. It is one of the advancest drilling technologies. Except for core drilling, it also used in mineral resource drilling, coal field drilling, hydrology and well drilling, oil field drilling, the gasification of coal, ground heat exploiting, and various holes for cable, water thbe etc, under ground river and way. Type UnitLF54LF65LF75ATool outer diameter mm546575Pumping rate L/min120-150180-250450-600Torque output N.m100180240Rotational Speed Output r/min350-450298-415260Working Pressure drop MPa3.143.143.2Overall Length mm220026501945