Hammer Drill or Rotary Hammer for poured concrete wall

I'd buy a 2" core drill bit [about $100 on ebay] and use my 1/2" drill. [*not* in hammer mode] The bit I have is about 4". I'd drill till it bottoms- chisel the waste and do it again.
Hitting re-rod might create a problem- but to do 8" of concrete would be a 10 minute job-- and you'd end up with a nice hole exactly where you want it. -snip-

If you're determined to rent- I'd ask what they have in core drills. There might be something that will plow through re-rod & 8" of concrete in short order.
Personally- I'd rather own the tool to use another day.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.