Ingersoll Rand ECM350: Air Crawler Drilling Rig, this unit can be fitted with either a VL140 drifter hole size of 64mm to 102mm (2.5 to 4 inches) or a Rotation head for down the hole drilling with a 3 or 4 inch hammer, 90mm to 130mm (3 1/2 to 5 inch) fitted with an extendable boom. Repainted Year 1993
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