QUOTE(Richard @ Jun 4 2017, 04:55 AM)
I need to buy a drill to make a 75mm dia hole through a double brick wall..
I only have a Bosch 550 GRE.. What else do I need to buy ? and where?
Hardware masonery bits only make small holes..
I am looking to buy online or can anyone sell a spare 75mm dia hole maker to me?
That is big hole.
Forget the bosch 550gre for such a big hole.
Even my Bosch 16re 700w bore a 100mm hole on the wood, like struggling. Hole drill freaking hot. Lastly have to use the makita rotary drill to finish up the job.
You can use concrete bore hole saw. Either diamond tip or tungsten carbide teeth. Need at least Makita rotary drill minimun requirement spec.
You need to take time to bore and not hurry. Drill and stop with plenty of water to cold down the tip.Hole bore saw