Technical Specifications of PDTHR 450 AMW Drill Rig Machine: Depth of the Bore hole - 450 Meters Diameter of the Bore Hole - 10(204 mm) by DTH Method 12 ¼(310 mm) by Rotary method. Application - Hard Rock / Soft Soil / Alluvial Formations. Rig Carrier - AMW Make 2523 Model truck with Engine Capacity 230hp @ 2400RPM and 25 Tons Gross Vehicle Weight. Compressor - ELGI/Atlas Copco Make 1200 CFM @ 350 PSI Mud Pump - Hydraulic Driven Screw Type Mud Pump