What porting tools are you using?

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So you have to get 3/32" burs and cut them down and add the flat drive tang and the locating groove.

I guess if you wanted to do all of that work you could make them, but why. They are readily available.

Later
Dan
 
Greame I bought it off Ebay.
I bought it mostly for the upper transfers as I still use the Dremel for everything else, but yeah, this Dremel is starting to rattle a little also.
The "RA" bits for it are hard to source so I had to mod some myself.
Same here

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I just purchased a 90 degree Dremel type 1/8” shank grinder but it doesn’t fit the smaller bores to move the transfer ports inside the cylinder it was $68 at Amazon.

I have a wen Dremel and a Dremel that take 1/8’’ shank tools. One has a adjustable rpm. I have a larger shaft driven die grinder with a drill chuck for larger porting jobs with 1/4” shank bits.
 

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