If you own a tap and die set — or are planning on doing pretty much any kind of metalworking — you need a 115-piece drill bit set. Why 115 pieces? Thats how many bits it takes to cover all fractional, numbered, and lettered sizes.
The best part? You don’t have to spend a fortune to pick one up.
Before the emails start rolling in telling me how much a $50 set of 115 drill bits suck, let me go ahead and say that in many cases, having the right size is more important than having the best drill bit.
I’d totally agree that you’re getting better bits when you shell out $300 for a 115-piece set, but for the amount of use that these individual bits’ll see in most DIY shops, the $50 sets work fine. Sure, you’ll wear out a bit or two, but you can easily pick up a replacement. And given a $50 budget, I’d rather have the whole set than just one or two good bits — that don’t fit the tap that I need to use.
So, that said… The pictured kit is made in China, is made from high-speed steel, has a titanium nitride coating, and sells (from all sorts of sources) for around $50. I have one, and I’ve had good results with it — though admittedly I’m not using it for any kind of production work.
One bit of cheap-ass-shopper advice, though: Avoid the sets from Harbor Freight. While I’m sure the drills are no worse than the ones I have, the boxes they come in suck. They fall apart virtually instantly.
Street Pricing (115-Piece Drill Bit Set) [Froogle]