In article , RedDwarf wrote:
The problem is that the to prongs/
spades keep breaking off as I begin to get through the 2x4.

In that case... the bits you're buying are garbage. Wherever you're going to
buy them, don't go back.

Again, if this is getting expensive, that's your own fault. That's what
happens when you buy the cheapest crap you can find: you have to keep
replacing it. The lowest price is usually *not* the best value. Pony up the
extra bucks *once* and get a decent set of bits. I'm still using a set of
spade bits that I bought _at least_ 25 years ago, and have used for literally
thousands of holes. I've had to replace exactly one of them during that time,
and that was because I lost it.

Try *any* of the following:

Craftsman
Irwin
Vermont American
Ace Hardware's house brand