Cutting out the rust, cuttoff tool? Options

[swl]

I bought myself a compressor and el cheap tool kit. I was kind of hoping that the cutoff tool would be the right thing for cutting out the cancer. Had a go at it today but this tool was useless. No torque at all - stalled with very little pressure - hardly any sparks. There is an adjuster on it that seems to throttle the air supply. Played with that a bit but it didn't really make any difference.

So do I have a faulty tool or just the wrong tool for the job?

[Joe Owensby]

I am using a 4 1/2 inch electric grinder . Cost about $20.00 from harbor freight, on sale. It can grind with a grinding attachment, or has 1/16 inch thick cutting wheel. this zips through sheet metal. It also can be used to only cut as deep as you want, as opposed to a saw that will saw all the way through. for instance, on the Longs, there are two separate layers. My outer layer had some rust, while the inner layer had none. I was able to just cut out the outer layer, while keeping the inner layer totally intact. this can also be done for other overlapping parts, etc. I use a dremel tool with a small cutter when I need to cut into a corner, etc. The smaller dremel cutters are very easy to break. I also have an air grinder that I use, but it does take a lot of air pressure, and volume. I have a 5 Hp compresser that does pretty well. Try putting a little oil in your air tool to maybe lube it up a little and get a better seal. Joe O.