I have the milwaukee version that has fixed BG and D3. The 840 die is good as it can do the blackburn common die series lugs from #6-350 (https://library.e.abb.com/public/6d11abab19de4b0b8fb22158c61cf7af/Blackburn_Compression_catalog.pdf page 23).Get the O die nose. With the D die in back. The bg can be bought in a die set that clips in the O space. That way you have three dies that will about do everything. All the H taps(up to 350) and barrel sleeves for 2/0 and 4/0
Burndy MD68 probably cheaper and it’s the same thing.