[TheForge] Hammer drill bits?

[Andrew Vida]

Anyone here know of a good source for spline-shank hammer drill bits... 
that or have one for sale?

I have to punch 7 holes through the footing of the house to fish some 
3/4 rebar into so I can get the outer forms finished.  The hole under 
the house is 10+ feet deep, is open to the outside, and it was COLD in 
the house this winter past even with all the heat going. Don't want to 
do that again, so need to get this deal done so we can get the new 
foundation poured.

toolbarn.com had the lowest price, but almost 3 weeks to get the items 
and they will not drop-ship.  Nobody else including Grainger has them in 
stock, except a few and the difference is between $37 at toolbarn and 
almost $90 elsewhere.

Any help would be greatly appreciated.  OBTW, the hammer is a Bosch.