I was trying to remove what I thought was a stuck threaded pipe plug in the china rail of my 283 that did not have a key way, long story short, I busted an easy out trying to remove the plug. I did not even want to think about what a machine shop would charge to put the block in one of those bolt disintegrator machines. So I broke out the drill bits, and after some pointless watching a drill bit go dull, I decided to check out the interwebz to see what others had done in my place. I came across this outfit's youtube video and watched the tool in action. I was impressed, but still a bit skeptical, particularly after I saw the price of $45. I thought about how much a machinist would charge me and decided I could go without more beer for a while, stupidity is expensive, but I reckon I will amortize the value of the bit after one successful extraction like this one. You can go direct to the manufacturer, www.rescuebit.com , and have them ship it to you but they wanted $10 to ship it to me. Frugal as I am, I knew I could find a better deal. So I went on to Amazon and found the bit for the same price, and the shipping was five bucks cheaper. It took about three days to reach me. Read the instructions! I did and I am glad I did. Do not use any oil, go in dry, and lightly waller out the busted bolt/tap/easy out. Let the tool do the work, or according to the manufacturer, you are screwed and will break this bit too. Patience is required, it will work out just fine if you mind your work and let the tool do its thing in its time.