I had to put a 1/8" groove in a steel cylinder, the idea came to me to put the cylinder in a drill and mount the drill in a vice going at full speed. then I used a hacksaw blade going in a 90 degrees to put in the groove. the purpose of the groove was to mnake a place for a snap ring. just thought i would share in case somebody had an application for this. anyone else have some homemade devices that they use?

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1996 E320
2000 C230 Kompressor
1988 190e 2.3 - 225K miles, owned for 7 years. I cannot say enough good things about this car. Very well built, even at 225 it ran like new.