Milling Vise Base | Universal-Base

Clamping Circle 6-3/4' Top. Designed for 5/8" Bolts. Top pin O.D. 7/8", Height Set Flat 7-1/4". Bottom Base 12-15/16" Long by 9-5/8" Wide. All 3 pivots marked 0-90 Degrees.Key Width 5/8", 68.8 LBS. What this is, is a very unique piece i purchased it just in case i needed to get into the 5th dimension with a 3 dimension machine. Didn't matter what fit on top (i would make it). Won't find another one (latest one on Earth, maybe) i would guess.