Best Fence Post Hole Augers for Efficient Digging

Fence Post Auger

Using an auger to dig a hole is much better than manually trying to dig into the ground using a shovel. Not only will a shovel take you a lot longer when digging holes, but it’s often times much more labor intensive.

There are several different kinds of post hole augers available for purchase, but the type you will need to purchase depends on the job you are doing. Gas or electric augers are best if you don’t want to have to work too hard. Here are some of the best fence post hole augers available that will help you dig efficiently.

XtremepowerUS Hole Digger

Xtremepower Fence Auger

The XtremepowerUS Hole Digger is one of the best gas-powered hole diggers on the market today. Not only is this product super fast, but it’s also very high quality and durable for even the toughest jobs. The engine is 2.5HP and it’s a manual recoil start for easy fuel delivery. You also can easily see the gas tank so you know how much gas you’re working with.

There are so many pros with this product, such as that it comes with an 8-inch auger bit, but it will work with even a 12-inch auger bit. This tool is very lightweight and offers quick performance, but it’s sturdy enough for some of the toughest jobs out there. It works in all kinds of soil conditions, even in rockier soil. The engine is powerful and the digging performance is really good. You’ll know immediately that this tool is high-quality and great for jobs such as putting up a fence.

As with most tools for post hole digging, there are a couple cons with this product we wanted to tell you about. The biggest issue people seem to have is that it can take a while to start up, and it’s something that happens regardless of how many times it was used before.

Another issue is that even though it’s lightweight, it will take some muscle to actually get into the ground and begin digging efficiently. Bits breaking after a few uses are also something that could happen, although it doesn’t seem to be a huge problem.


  • Compatible with 12-inch auger and comes with an 8-inch auger bit.
  • Electronic with an extremely powerful engine for digging, even in rocky soil.
  • Fast, lightweight, great value, and very high-quality.

  • Can take a while to start and is a bit slow.
  • It still takes a bit of muscle to operate.
  • There’s a chance the bit will break after some use.

Southland Earth Auger

Southland Earth Auger
The Southland Earth Auger is a bit heavier than some other models, mostly because it features a bigger gas tank and engine. This tool has a 43cc 2-stroke engine and also features a very large 32-gallon capacity gas tank. An 8-inch bit is included and you will also be able to purchase the 6-inch bit separately. The auger itself features to wrenches that are open-ended and the setup is so easy compared to other similar products.

With the Southland Earth Auger, you will notice that it’s a pretty hefty piece, which is a pro for some. This tool weighs 40-pounds and features 26-inch ergonomic butterfly handles. It also has manual recoil so that it will start easily and provide efficient fuel delivery. What we love about this tool is that it has the throttle right on the handle for easier use. The on and off switch is also very easy to see and use, so you don’t have to waste time trying to flip it on or off quickly. This auger also will not leak gas even when it’s tipped over, which is a great safety measure.

There are a few cons to the Southland Earth Auger though, including that it isn’t meant for hardcore digging. If you try to dig in hardcore areas with this tool, the blade will dull out pretty quickly and you risk messing up the entire product. Depending on the type of clay you are dealing with, this tool also is known to struggle in harder clay.


  • Uses ergonomic butterfly handles for easy control, balance, and even storage.
  • It will start very easy and has manual recoil.
  • Large 32-gallon gas tank and features a 43cc 2-stroke engine.

  • Not powerful enough for more hardcore types of digging.
  • Can quickly dull out if you use for hardcore digging.
  • Struggles sometimes in clay.

Landworks Eco-Friendly Auger

The Landworks Eco-Friendly Auger is a great choice if you need a lightweight option for efficiently digging. This auger has a reverse-action switch that can be found on the handle and weighs only 22 pounds. Since this is a battery-powered tool, you won’t have to worry about the noise as it’s much quieter than the gas powered versions.

There are several benefits to the Landworks Eco-Friendly Auger, including that it comes with a 2Ah battery that is 48V. You have the option of also getting a 4V battery that the company sells if you need more power. The powerhead also will not overheat since it comes with an overload protector, ensuring the tool continues to run smoothly. You’ll also love that this tool has a brushless motor, which actually will make digging more efficient. There are also various auger sizes included with this tool which allow you to make the holes you need at any time.

There’s a few cons with this tool though, including that it can be difficult to get through roots. It also has a hard time digging too deep and it won’t easily go through rocks. Another issue people seem to have is that the battery life doesn’t last as long as it should.

The more you use this product, the quicker the battery seems to die. You’re supposed to get 30 holes dug with this tool, but most people get around 20. Once the battery goes a little, you may only get four or five holes on one charge.


  • Auger weighs only 22 pounds.
  • Uses 48V 2Ah battery that allows for 20 to 30 holes to be dug on one charge.
  • Auger has reverse-action switch built into the handle.

  • It’s difficult to easily get through roots especially the deeper you go.
  • Battery life seems to drop over time to less than 10 holes.
  • Does not go through huge rocks.

Fence Post Augers FAQ

How Deep Do Fence Posts Need to Be in the Ground?

There is a formula that you can use to figure out how deep your fence posts need to be in the ground. The general rule you should use is that you want the fence post to be 1/3 of the overall length in the ground. This means that if you are using a 12-foot fence post, you will need to put the post 4-feet into the ground.

There might be specific building codes in your local area that you will need to follow, and frost lines are important to check as well. Checking with your local government and utilities company is the best source for this information. You will also need to account for gravel that you will be using to fill in the hole, so that means you need to add 6-inches to the depth. Always add 6-inches to account for gravel when digging the hole regardless of size.

Are Post Hole Augers Interchangeable?

Post hole augers, which are also called automatic diggers, are interchangeable. There are two types of automatic post hole diggers which are electric and gas. Automatic diggers often times come with either a 4, 6, 8, or 12-inch blades that are interchangeable. The blades being interchangeable allows you to use the right size blade for the job you need to do.

Instead of having to purchase multiple post hole augers for various jobs, you just purchase one and use the interchangeable blades. The 4, 6, and 8-inch blades are great for root and weed removal as well as the fertilization of shrubs. You also can use these blades for planting seedlings, bulbs, and plants.

How Deep Can a Fence Post Digger Go?

A one-person automatic fence post digger can go around four-feet to five-feet deep with no issues. That’s often why people use them to dig fence post holes that are 4×4. If you are looking at manual fence post diggers, they can only go up to four-feet deep, although many won’t even go that far. The issue with manual diggers is that they have a very hard time getting through the tougher clay you come across deep in the ground.

With the manual fence post digger, you should be able to go into the ground about ¾ of the size of the handle. The bigger the handle is on the fence post digger, the deeper you will be able to go into the ground. If you need to go 10-feet or more into the ground, an excavator might be the best option instead of looking at any automatic fence post diggers