[Ben H]

I used one these last week, and ran right out and bought the kit. If you need to punch holes in drywall, studs, or anything non-precision. This is the bit for you. They WALK right through a stud no problem.

Now, I must say that I was using my DW Impact driver with them so I know that helps, but I put a 1" hole through a floor joist in about 3 seconds. I could not believe how fast they cut, and for 30 bucks for the full set. Worth every penny. :thumbsup:

http://www.irwin.com/irwin/consumer/jhtml/detail.jhtml?prodId=IrwinProd160003

 

[woodman42]

I agree with you been. I have that set and they work very well.
I have used them with my impact drill but they work just as well with a regular cordless.

 

[dbhost]

Ah yes, the Speedbor Max bit set. I own one of those! They cut really fast, and don't tear out the backside nearly as badly as the normal Speedbor spade bits do. Great investment!