Thanks for the input, guys.
What I'm feeling here is that I should get either a spline drive or a SDS-max, so I won't limit myself down the road.
But what about the core bits? The ones I've used in the past had a pilot bit in the center. Some of the ones I've seen for sale have just a point in the center or none at all.( I wouldn't think that would work as well) Some of the core bits say that they're only recomended for fresh concrete, not cured concrete. Is that the difference between thinwall and thickwall?
Maybe I'm over-analyzing this stuff, but I hate to buy something and then find out I can't use it for what I had in mind.
Thanxs, Dave
