Brian; How much as it may be too costly to do a single job???????
Dave, I saw various sets on the interwebs in the $27-35 range. Surprisingly, Harbor Freight was not the least expensive. I think some of the auto parts stores were the less expensive. To me, when tools like this are under say, $40, there's no reason not to have them, even if you only thing you'll use them a few times. Because, when you need 'em...
The converse is over $50. For example, I needed a hammer drill to set a shelf in my brick walled house. I could have borrowed a friend's, but I figured I'd need it again sooner or later, so I got a cheap one from Harbor Freight. I waffled over a cordless impact driver. I really needed one to remove some stuck bolts in my Force 5's rudder bracket. Well, after my old 18v NiCad drill batteries started a shorter life cycle, and seeing a Ryobi set of lithium battery powered drill and impact driver for only $130, I figured what the heck? Damn glad I got that impact driver, I imagine it will come in handy sooner or later. Takes stuck screws and bolts out like butter!