When you're about to take on a new project you can always find use for a rotary hammer. Since it runs on a cord, you get more constant power than with a battery.
From Amazon
Einhell RT- RH 32 Rotary Hammer Drill | SDS Plus 3-in-1 Drill - Drilling / Pneumatic Impact Drilling / Chiselling | 1250W, 3.5 Joule Impact Force, Electronic Speed Control
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