3 PT post hole digger

Doug-Iowa

Member
Looking for advice on a new post hole digger. My current Danuser has a 9" auger and can maybe drill 40" deep. I want to make holes at least 60" deep, so I'm looking for one with a longer boom. I can easily add an extension to my existing 9" auger bit. I'm also wanting to buy a 16-18" auger bit for planting trees. It only needs to be long enough for 24"-36" deep. I realize the longer the boom the harder it will be to lift out of the hole, but I seem to have plenty of 3 point lift capacity so that doesn't worry me. And I don't need to do a hole all in one shot, if it takes 2-3 clean outs between strokes to get deep enough that is fine. I thought about making my own boom and lengthening the PTO shaft. But this digger has had a lot of use, good time to upgrade. Any long boom diggers available?
 
My best advice on PHD is to forget about 3pt PTO PHD and get a PHD mounted to a skid steer. You won’t regret it. The work is right in front of you, so you can see what you are doing. You have down pressure if needed. You can straighten the hole as you go. If you hit a rock the drill has reverse. It will lift about 9 feet depending on your model. Changing bit sizes is easy. The holes are straight & clean when done. Even if you don’t dig that many holes, I’d rent one before I’d ever you a 3pt PHD again.
 
I doubt that you will find one that will dig that deep. I can't see any tractor 3 point digger that has that much clearance between the head of the digger and the ground when mounted. You might be able to fabricate a shaft extension that you can put on when you have the auger in the ground all the way then take off the extension off before you begin to raise the auger. Getting a clean out that deep would be a problem and it would be a quite a bit of lift for smaller tractors, Just my opinion.
 
For that sort of depth, you'll have to go with a loader mounted auger. The geometry just doesn't work on most 3ph tractors.
 
I will never own another 3pth hole digger. If I get a another post hole digger, it will mount on the front end loader, and drive by hydraulic. Three point rarely have down pressure, and most loaders do. And the loader can lift the auger better with little risk of damage to the frame. Don’t see many old 3pth diggers that aren’t all bent out of shape.
 

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