Calyx rig specifications and its use to drill bore holes in rocky areas - Need details of manufacturers in Hyderabad, AP

What is CALYX RIG ? Where it is useful ? Is this Rig can be used to drill bore holes in rocky areas ?Give me names of some manufacturers of CALYX RIGS in south India. As per my enquirey, the reputed manufacturers like KLR-Hyderabad,Atlas etc. are not manufacturing CALYX Rigs.

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