You DIG postholes. But if you are putting in a thin, deep hole as in a bore - then you DRILL it.

And, if you are drilling a hole - a normal posthole auger drive is not good enough. This is because you will need to work in an absolute straight line and keep your angle to the ground constant. Most posthole diggers are not good enough, therefore you need a drill drive that is constant in direction. And, Dingo has such an attachment in their range.

Basically, the Mast Post Hole Digger is a posthole auger drive that slides up and down a shaft, driven vertically by a hydraulic ram. Standard stroke sizes are to suit 1m and 1.5 m auger extension sections. These extensions are readily available.

So if you want to dig a hole to 150 dia and 15m deep, you take an auger and 9 extensions and very quickly you have that exact hole.

This drive unit suits best when dealing with holes up to 300mm dia, but larger holes can be done, if a bit slower. So far the deepest we have tried drilling was 22m. We found it a BORING job - But easy to do (pardon the pun).

This Mast Hole Digger will be available with the Wheelmotor Drive Post Hole Digger only and will be suitable for augers up to 350mm diameter.

FACTS AT A GLANCE | Mast Post Hole Digger
Depth:	10m depending on soil conditions.
Auger Size:	Up to 300mm
Stroke:	1500mm
Used For:	Deep bore hole digging and blast holes etc.
Used By:	Soil Testers, Fencers, Shallow Water Borers and Miners