Overhead Coring for Wall Plug Installation

on April 20th 2009, i went to Bintulu to train a customer who bought Hilti DDEC1 complete with DDREC water recycling unit for an overhead coring job.
they want to install a pipe support using Hilti HVU system but the column are rebar infested so drilling with drill machine has no use.
complete set up to do coring overhead. no wall plug needed.

easy to do coring overhead and very easy to move to next coring point.

easy to operate.

but the customer are using it in MLNG2 plant which prohibit me from taking actual application photo.