many years ago used the ball bearing and ball peen hammer method it will work but it isn't factory looking. I own the real tool from old Kentucky drummer not cheap but I work on a lot of drums it has paid for itself many times over.

The tool VM2k mentions is well worth the money, even if you only do one drum.

+1, gives a factory look that I could never achieve with any of the less expensive methods.

yeah, I made my own. it works pretty good. then I borrowed one of the old Kentucky drums model from a buddy. it did a nicer job I think. for tightening a loose grommet, I place a ball peen hammer on the back of the grommet and hit it with a claw hammer. have done that a few times successfully.

mike

Another thumbs up for this tool

This video is awesome!

[ame="http://www.youtube.com/watch?v=2QA8SaYZPiA"]http://www.youtube.com/watch?v=2QA8SaYZPiA[/ame]

He is a member here, and posted it here also !

I also made my own tool at first, but then I finally broke down and purchased the actual tool from Old Kentucky Drums. I should have done that from the start! Great tool - works so well.

also the ones form detroit drum exchange are excellent I use both of them, I have never understood when you spend hundreds of dollars on wrap and the time and trouble to install it then you cheap out on the grommet install with a cheap amateur DYI tool which is the job it leave on the grommet.