1.1775 in. min, 1.838 in. max o/a lg, 0.620 in. min, 0.625 in. max od 1st step 1st end, 0.335 in. min lg 1st step, 0.810 in. min, 0.820 in. max od 4th step 1st end, 0.755 in. min, 0.765 in. max od 5th step 1st end, hex 1.008 in. min, 1.046 in. max distance from 1st end, 1.052 in. min, 1.062 in. max w across flats, 0.4375 in.-20 unf class 3a thd 2nd end