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Rotary hammer drill recommendations
(aussie.zone)
Tradies buy the Ozito corded SDS rotary hammer all the time as it's powerful enough to do the job, and cheap enough to replace when they need to. It's rated at 5J of energy output. Currently $99.98 - Link
The Ryobi HP brushless cordless (RSDS18X) is only 2.5J, half the energy output of the corded Ozito, and costs three times the price at $299. Definitely not worth it unless you really, really need cordless. Link
Ozito stuff tends to be amazingly solid for the price I've found - my current hammer drill is an ozito and that thing has been abused over the past 15 years
If you're looking for something that's a step up from the impact and hammer you already have, consider something mains powered. That ozito posted will get it done.