574.41€ ! Jeepers! Hire someone to do it and keep 539.41€ in the bank.
Thaaa’s the badger, Paul! Next weight up from the one I recommended because I did bear in mind that for use by a woman, weight becomes a significant issue. As one of the trademen reviewing his Titan on Screwix said “I wouldn’t want to be using it overhead for too long.” Mine is not called ‘Big Huge’ for nothing, although that also reflects the ease with which it despatches brick, concrete, stone.
The cheaper of the L.Merlin and the Lidl are lighter - but I do like to know I’ve got as much power as I can handle.
Well, they are, to a degree but check the weights of the L.Merlin and Lidl models. They won’t come much lighter than those and still be up to the job.
As Graham noted, you will need to pass the connector thru’ the hole. I did this very same job - ethernet cable from router, thru bedroom wall into office. 16mm may do it. No smaller. If it’s a bit sticky, run the bit back and forth a few times and hoover out the tunnel.
I poked a bit of string thru, the ‘destination’ end of the hole, taped it to the connector [also protecting that from debris] and pulled it thru’.