I hit the new post buttong and I thought this was a p---ing match on peanut butter. I'm a Peter Pan guy myself.
After reading the post I think you problem is your gas, not your drill. I've got a buddy who does small engine repare and he says the amount of alcohol that is in gas these days is killing small engines. He suggest finding ethenol free gas to run in all small engines, the smaller the engine the more it affects them and it is especially hard on 2cycle engines. He said to combat this if you can't get ethenol free gas is to put an additive like SEAFOAMhttp://www.seafoamsales.com/ in all your gas. Also at the end of the season run the gas tank bone dry and it will help a lot. He said the ethenol does something to the small plastic parts, the tanks and fuel lines of small engines.
I was replacing fuel lines on my weed eater and lawn mower every year. I've gone 2 years now without needing to replace a single one. I also put a full can of the seafoam in my truck every time I change the oil and have seen improvements in mileage and performance.