Flush fitting belly grommet

that's easy enough but if you want to do that faster, Mike at M&D's sells a step drill bit that does that in one operation. He has 2 sizes. Splashnplug makes them I believe.
 
that's easy enough but if you want to do that faster, Mike at M&D's sells a step drill bit that does that in one operation. He has 2 sizes. Splashnplug makes them I believe.

anyone that saw my display on darters may have noted the step drill that I use.. I know I pointed it out to several people.. the bottom/assembled darter had the belly grommet in place...I'll check anbd see if I have a pic. on my PC here...I have the pictures from the display on my home PC..
 
found one...

it's an older picture, but you can see how it works.. i bought mine from Mcmaster Carr... i also have one one of the machinists here made...I have two sizes.. both fit perfectly... I'd have to research the diameters, as, with most things these days.. I've forgotten...
 

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