Mil-t-6736 mil spec single material response shank or mil-s-6758 mil spec single material response shank
Mil-t-6736 comp 4130 assn std 1st material response overall or ams 6372 assn std 2nd material response overall
Il-s-6758 mil spec single material response shank or mil-t-6736 mil spec single material response shank