TracTuff -8 ORB to M10 x 1.25
$14.95
-8 ORB to M10 x 1.25 was originally made to convert a -8 ORB port to a Bleed Bolt but M10 x 1.25 is so close to 1/8" NPT thread size that you can effectivly drill through this adapter and start a 1/8" NPT tap very easily. I recommend a thread sealant after you tap this part being there will now be multiple threads in the part.