My Mruder (bruder cat320 something look alike)

[cdm]

2.5mm which is what is recommended on the tap list.

used 2.7 as well but wasn't happy with the thread bite. it was certainly easier going tho

[doodlebug]

Originally Posted by cdm

2.5mm which is what is recommended on the tap list.

used 2.7 as well but wasn't happy with the thread bite. it was certainly easier going tho

Is there a letter or number drill, that would give you a better fit? What are you using for cutting fluid?
Cheer's, Neil.