... railway, highway, bridge, dam, etc. It is also used for drilling small water well. XY-1A Core Drill is of high ... spindle speed and suitable for core drilling with diamond bits.l Easy to operate and maintain.l ... required MAIN SPECIFICATIONSMODELXY-1 XY-1AXY-1BDRILLING CAPACITY Φ42 Drilling Rod180m180m180m Φ50 Drilling Rod100m100m100mDRILL HEAD Spindle Speed (rpm) 142, 285, 570140, 295 ...