Factory pipe thread size

Don't bother. Just get the oversized pardaddy kit it comes with 3 adjusters, 1 long drill bit and the correct tap.

Going oversized is the key because its less likely you will have a problem because of the bigger allen head and fatter screw. I use 1211 on the threads for extra insurance.

I got 2 kits just because I always see myself having FP B's
 
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