Best technique to channel paramount partition (honeycomb plasterboard)?

[DaveFix]

Hi all,

I have pipework mounted on top of paramount partition board and want to hide this pipework inside the partition.

I'm thinking of drilling access holes at each end, and feed through speedfit.

What's the best technique for creating the channel internally between the two holes, cutting through the cardboard 'egg box' chambers?

 

[noseall]

It should just push through, though not maybe in a straight line. Fish wire with a line attached then draw the pipe through.