Longtime lurker, first-time poster as this is a subject I have a leg up on you indoor guys: I have nothing but Hilti, and will buy nothing but Hilti in this tool class. I've used Bosch and they make fine tools but nothing comes close to Hilti, and every thing else other than Bosch I've tried is crap (old Milwaukees had some moments). I've drilled tens of thousands of holes from 3/8" to 6" core, busted and chipped untold yards of concrete, and my Hiltis go through the concrete (with many USA bits) like the proverbial sh!t through a Christmas goose. I still have my first Hilti, a TE52 SDS max (the Hilti guys no longer get their panties in a bunch when you use the SDS max or plus designation) that must be around 35 years old, or even older, and starting to show it, but is still a great concrete driller (it's lost a lot of its straight hammering ability).I've used the rotary hammers for much of what others have already mentioned, but also in gardening: Digging holes in compacted or rocky soil for tree planting, used to drill bulb holes in the same tough soil, and to sink underground drip-watering sleeves for both existing trees (pines and oaks) and newly-planted ones. I bought some drill extensions just for gardening. Yeah, you go from 45 years of construction to gardening pretty quickly when you retire; it's nice.Next project with one of the Hiltis is breaking the asphalt driveway at the mountain house in order to pour a concrete drive.Even though I'm recently retired, I'm going to buy one last (expensive) Hilti. Yes, I belong here....One last note: There are rotary hammers and there are hammer drills, but no rotary hammer drills, unless there has been a new tool invention recently of which I'm not aware.
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