3-point post-hole diggers need hitch class, PTO shaft power, and enough lift to carry the boom. Auger diameter and soil still belong in the implement manual.
Hitch, PTO, and lift requirements for Post hole digger — curated models and a direct link to the Attachment Fit checker.
Check fit for this type →Read the fit guide →
Will this attachment fit your tractor? →Pick your tractor and the implement you’re considering. We compare published hitch size, PTO power, and lift capacity — so you can screen a purchase before you buy.
PTO HP and lift on compact frames. Sub-compacts often clear only lighter diggers; utility machines handle larger augers when the sheet agrees.
Match hitch and min PTO below, then screen in the Fit checker. Confirm digger and tractor OEM pages for your serial year.
OEM sheet — OEM tractor HP range lower bound 15; weight without auger — add auger mass before purchase. Max PTO speed on sheet is limited; confirm driveline notes.
OEM sheet — OEM tractor HP range lower bound 20; weight without auger — add auger mass before purchase. Max PTO speed on sheet is limited; confirm driveline notes.
OEM sheet — OEM tractor HP range lower bound 25; weight without auger — add auger mass before purchase. Max PTO speed on sheet is limited; confirm driveline notes.
OEM sheet — OEM tractor HP range lower bound 30; weight without auger — add auger mass before purchase. Max PTO speed on sheet is limited; confirm driveline notes.
Class estimate — Auger diameter and soil conditions change required PTO in practice.