Last updated Mar 27, 2026
Learn how hydraulic drills work and the safest ways to use them
Powerful and reliable, hydraulic earth drills offer a variety of benefits for drilling projects that require breaking through heavy clay or rocky soils. With the additional torque that comes with the hydraulic drill, it’s important to understand the hydraulic power source and how to use a hydraulic earth drill safely.
Why choose hydraulic earth drills?
Perhaps the most obvious question is why choose hydraulic earth drills in the first place? With a durable body and higher torque than mechanical options, a hydraulic drill can bring more power to a drilling project. Hydraulic earth drills can also drive larger diameter augers with extensions available for deeper drilling projects. Equipment longevity is a factor too. Hydraulic earth drills usually require fewer repairs overall, which lowers costs in the long run.
Once you’ve decided the hydraulic drill is right for your project, it’s time to learn more about what a hydraulic drill is and what you need to be aware of to use one safely. Hydraulic pressure is what generates the force behind a hydraulic drill. So, we’ll start there.
What is hydraulic pressure?
The term ‘hydraulic pressure’ refers to the pressure exerted by fluid (whether at rest or moving) on a surface or structure. In the case of hydraulic earth drills, the hydraulic pressure is the force the fluid creates to drive the drill’s auger forward.
The hydraulic system in Little Beaver hydraulic earth drills generates pressure ranging from 2,500 to 2,700 pounds per square inch with operating speeds up to 150 rpm. Little Beaver hydraulic drills have a hydraulic pressure relief valve that reduces the risk of hydraulic power exceeding the maximum pressure the drill is built to withstand. Once the hydraulic pressure reaches a pre-determined point, the pressure relief valve responds and feeds the excess flow from the system back into the tank. To ensure safety, the valve should be set as equal to or less than the rated working pressure of the weakest component in the hydraulic system.
A relief valve doesn’t remove system pressure, it instead works to prevent pressure from rising past the pre-determined level. The valve reacts quickly to protect against damaged equipment, disrupted work and even injury that can come from hydraulic pressure being too high.
How can you increase safety with the hydraulic earth drills?
Little Beaver hydraulic earth drills improve operator safety thanks to the torque tube, which eliminates kickback and allows for safe and productive one-man drilling without sacrificing power. An optional two-man handle is available too. This handle is more convenient when drilling boreholes between 10-16 inches in diameter where two people are needed to steady the auger. The bigger, heavier auger requires two people to handle it and lift it out of the ground.
As with any project, you should follow basic safety precautions with your hydraulic earth drill. Make sure there are no bystanders in the area before you start. Never run the engine inside a building or enclosed space as exhaust gases contain carbon monoxide and can be deadly. Observing your surroundings before you start drilling keeps both you and any bystanders safe throughout the drilling process.
Always contact local utility companies before drilling to determine the exact location of underground services. Inadvertent severing of telephone, fiber optic or community antenna television transmission cables or damaging sewer pipe is costly. Additionally, rupturing gas or water lines can cause serious injury. To locate these lines, call your local utility companies 48 hours in advance of digging to mark the positions.
Know Your Drill
If you’re looking to complete a drilling project for industrial fencing, landscaping, mobile home and light utility anchoring or any other drilling project that needs high power while still requiring maneuverability, a hydraulic earth drill might be right for you. To learn more about how hydraulic earth drills can help in your outdoor projects, consult with the Little Beaver team!
Contact our team today.
Last updated Mar 27, 2026
Optimize Your Earth Drill with Little Beaver
There are a lot of factors to consider when purchasing an earth drill. While some features may seem like mere details, the effect on productivity can be significant depending on soil types and applications. At Little Beaver, we offer a variety of customizable earth drill features to maximize drilling performance for each application.
Below, we explain some of our most common drill considerations.
Mechanical vs. Hydraulic
The first step in purchasing an earth drill is deciding between mechanical or hydraulic power. Your drill’s power source influences drilling strength, depth, attachment options and more. Knowing which projects you plan to tackle allows you to choose the drill that works with the accessories and kits you’ll need.
The mechanical earth drill offers high-speed auger rotation to dig holes quickly and cleanly. These models have engines ranging from 5.5 horsepower to 8 horsepower, providing ample power for nearly any project. The mechanical earth drills have a standard gear ratio of 10:1 with the option to purchase a 20:1 or 13:1 gear ratio for applications that require more power at a lower speed. The compact size of our mechanical earth drill makes it great for residential fencing, sign installation, landscaping and other limited access construction projects. With optional wet and dry horizontal boring kits, the mechanical drill allows you to take on even more projects such as boring under sidewalks or driveways.
The hydraulic earth drill offers rugged durability for challenging soils and applications. With engines ranging from 10.7 horsepower to 21.5 horsepower, Little Beaver hydraulic models offer ample power for drilling through heavy clay or rocky soils. We recommend the hydraulic earth drill for industrial fencing, foundation pier holes and groundwater monitoring. The hydraulic drill features an optional anchoring kit to install mobile home and utility anchors quickly and efficiently.
Maneuverability
Our mechanical and hydraulic earth drills come with two different engine carriage options so you can choose the best way to move your drill through the jobsite. The standard option is the rolling wheel carriage that features semi-pneumatic or pneumatic tires with the optional addition of a roll cage.
For additional maneuverability, you can upgrade to a specially designed rick-sha carrier that features 20-inch semi-pneumatic wheels for navigating over rough terrain. A convenient pull handle and transmission cradle make it easy to smoothly move the earth drill to your exact drilling location.
Drilling Handle
Both the mechanical and hydraulic earth drills feature our innovative torque tube. This tube redirects the torque away from the drill by transferring kickback from the auger to the power source. Most drills without torque protection require two operators. However, because our earth drills come with the torque tube, the standard handle on our drills is the one-man handle.
Our hydraulic drills offer additional handle options: a two-man handle for drilling holes that are larger in diameter or extra deep, and the high-torque anchor handle for anchoring mobile homes or light utility work.
Work with a Pro
There are many factors to keep in mind when choosing your earth drill and the features that best fit your application. The good news is that Little Beaver staff is here to help. We have more than 60 years of experience in the earth drill manufacturing business, and we are qualified to help you choose the best drilling equipment for your project. Call us today to get started.
Last updated Mar 27, 2026
Using an Earth Drill to Successfully Install Wooden Fence Posts
Installing wooden fence posts can be a great DIY project, especially if you’re renting an earth drill to make the job more efficient and less labor-intensive. Before you get started with your fencing project, there are a few things to know to set yourself up for success and prevent frustration in the future.
Plan Ahead
As tempting as it might be to start drilling as soon as possible, it’s important to call 811 and check local codes and ordinances before you drill. 811 is the national call-before-you-dig phone number that will send out a locator who will mark the approximate location of any buried utilities with paint or flags so you can avoid them. Some areas will also require permits before you build your fence, so make sure not to skip this step.
What You’ll Need:
- Shovel
- Gravel
- Level
- Concrete mix
- Mechanical earth drill with an auger 3 times wider than the posts
- Stakes (enough for each wood post)
- Wood posts (at least 8 feet in length)
- Rope (the length you’re setting your fence posts apart)
Lay the Foundation
The type of wood you choose for your fence posts will determine their life expectancy. It’s also important to look for chromated copper arsenate (CCA) pressure-treated wood, which will slow the decay of wooden fence posts over time. Pine is a popular choice for fences that can last up to 30 years when treated. Other long-lasting woods are redwood, sweetgum or cedar because they are highly resistant to moisture which helps prevent decay, cracking or warping.
Once you have the supplies you’ll need, carefully mark the location of each post with a temporary stake. When building wooden fences, it’s crucial to have the fence posts in a straight line, otherwise you’ll notice the poles weaving in and out of line after the poles have been placed. Stretch a long rope between each stake for a simple way to measure and mark the location of each post.
After you have marked the location of each post, it’s best to use a shovel to remove any sod you might be drilling through. Grass and vegetation can clog the end of an auger — especially when wet. This step might seem like a hassle at first, but it will save you time and frustration once you start drilling.
When it comes to picking a drill to rent, we suggest prioritizing safety. All Little Beaver earth drills incorporate torque tubes along with a slip clutch for added safety while drilling. A torque tube offers consistent safety by absorbing shock as you encounter different soil and resistance. On the other hand, the slip clutch offers protection for both the operator and the drill if you hit a rock or tree root while drilling.
Get Drilling
When the prep work has been finished, it’s time to get drilling. Make sure the auger enters the soil perpendicular to the precise point you marked with the stake and keep it vertical as you drill. It’s important to prevent the auger from entering the ground at an angle; otherwise, you risk setting a crooked fence post or a creating hole that’s difficult to backfill.
Dig the fence post hole so the diameter is 3 times the width of the post. For example, if the fence post has a 3-inch diameter, the hole should be about 9 inches wide. The depth of the hole should be one-third to one-half the post height above ground. For example, if the fence post is 9 feet tall, the hole depth should be at least 3 feet. If you live in a cold climate, it’s also important to make sure you dig your post below the frost line to prevent the fence posts from moving or heaving when the ground freezes in the winter. To dig below the frost line, check the local frost lines in your area and dig your hole 6-inches below that.
When the hole is complete, make sure to stop the auger and pull it out for a clean hole. To make this step easier than ever, Little Beaver mechanical earth drills have a lightweight design and our hydraulic earth drills feature a reverse button. Continue the drilling process until all fence post holes are complete.
Set the Posts
When all the holes are drilled, pour in about 3 to 4 inches of gravel. This will help with drainage as opposed to a post hole that’s filled entirely with concrete. Use a piece of scrap lumber or other blunt object to tamp down the gravel. This will ensure it doesn’t settle and allows for optimal drainage. On top of the gravel, add about 6 to 8 inches of concrete, and place your post in the middle of the mixture. Using a level right after this step will help to make sure the post is properly positioned. Once the concrete is leveled, fill the rest of the hole by backfilling the dirt and tamping as you go. From here, follow the instructions on your concrete mix to see how long it will take to dry.
After this step, your fence posts are ready to go, and the rest of your fence can be assembled. If you have any questions regarding drilling holes for fence posts with a Little Beaver earth drill, don’t hesitate to contact the Little Beaver team. We’re happy to help with any questions that might come up.
Last updated Mar 27, 2026
How Little Beaver Earth Drills bring versatility and efficiency to municipalities
Municipalities have their work cut out for them. Whether it’s city maintenance workers or general contractors hired to sustain parks in a city, town or borough, a day’s work can involve several industries’ skills rolled into one crew. They can be installing fence posts in the morning, replacing sprinkler lines mid-day and find themselves planting trees in the afternoon.
With this much variety, working smarter, not harder, is paramount to overall productivity. And having versatile tools that allow crews to better utilize labor, safely, while also outperforming other methods, can have a major impact on efficiency. Little Beaver Earth Drills can do just that. Our full line of earth drills enables safe one-man operation with nearly two times the productivity of other units. It’s just a matter of finding the Little Beaver earth drill that best meets your municipality’s needs.
Here are our two most popular earth drills for municipalities and how they can streamline work for grounds crews.
Mechanical Drills + Boring
If your town or city plants a lot of small greenery, installs several fences or other tasks that require crews to dig numerous footings quickly throughout the year, our Mechanical Earth Drills may be right for you. Perfect for horizontal boring or fast, narrow hole drilling, these drills, like all our drills, allow for safe, one-man operation and have the speed to help crews excel.
With our mechanical drills, users can choose from augers ranging from 1.5 to 16 inches in diameter with 36- or 42-inch lengths. And with multiple gear reduction ratio options, crews can choose a mechanical drill with 360 RPM for loose, soft soils or one with a lower speed that is better suited for dense, rockier formations. With a mechanical drill, crews can quickly install a long row of shrubs and then shift to setting a pole for a basketball hoop in denser soil — all without missing a beat.
To further increase municipal staffs’ versatility, we make Horizontal Boring Kits for our Little Beaver Mechanical Earth Drills. These are available in a sidewalk kit, for boring short distances up to five feet long, and a driveway kit, for boring up to 50 feet. The horizontal boring attachment allows grounds crews to install everything from sprinkler systems and lighting wire to drainage pipes and more, all with an easy-to-connect attachment.
Whether horizontal boring or planting a row of shrubs, these tasks, and everything in between, can be accomplished with one crew member thanks to our industry-leading design. A centrifugal clutch and torque tube eliminate dangerous operator kickback and prevent jarring stops when encountering an obstacle. Additionally, the innovative torque tube redirects torque to the engine carriage instead of the drill’s handles. These features make for a winning combination that spares drill components and protects the operator’s safety, allowing crews to better utilize their labor.
But, if heavy-duty applications and anchoring are abundant and soil types are consistently rocky and dense, hydraulic drills might be a better choice.
Hydraulic Drills + Anchoring
Our Hydraulic Earth Drills, with their powerful torque, are perfect for installing anchors or digging holes for large playground equipment, awning supports, sizable landscaping and other tasks that require deep, wide footings.
These earth drills accommodate augers up to 16 inches in diameter with drilling depths of up to 35 feet depending on the auger. The seemingly endless auger options combined with rugged drill construction and increased torque allow crews to take on lighter tasks like planting landscaping and then quickly shift to heavy-duty construction, like installing support beams for a sunshade. This gives crews the flexibility to divide and conquer whatever their municipality throws at them.
And with the hydraulic drill line, crews don’t have to look elsewhere for anchoring needs. Thanks to our innovative torque tube and precise auger rotation at low speeds, our hydraulic drills are perfect for anchoring. Our Anchor Adapters are available for various applications from anchoring poles and beams to installing tent stakes, making them a perfect, versatile solution for municipalities. By quickly snapping an adapter onto our earth drill’s high torque anchor handle, crews have a one-man anchoring machine to secure footbridges, large playground equipment and more — a much safer and more efficient option than anchor crankers.
The extensive tasks that await city maintenance crews and contractors every morning don’t also have to mean an extensive set of tools. With a little knowledge about the applications, crews can choose one Little Beaver Earth Drill to carry them through the day — safely and efficiently.
Last updated Mar 27, 2026
Which Should You Choose?
With all the earth drills on the market that are capable of installing a fence, how do you sort through the options to find the best drill for your specific needs? Little Beaver offers multiple options that appeal to fencers looking for the labor-saving benefits of safe, one-man drilling. While any drill may do the trick, different drills have different strengths depending on the job, and a drill that consistently gives you great performance can help you land more jobs and increase your profitability. Here’s a breakdown of our most popular options for fencing and the jobs they’re best suited for:
Mechanical Earth Drill
If the majority of your jobs require speedy, one-man drilling, look to our mechanical earth drill series.
Little Beaver mechanical earth drills combine a compact, lightweight design with unbeatable speed and precision. These transmission-equipped units feature high-speed auger rotations and excel in situations requiring numerous posts in very little time. And with optional 13:1 or 20:1 gear ratios, they can take on everything from soft soils to dense, rockier applications.
If you’re looking for more ways to expand your business, Little Beaver mechanical earth drills are compatible with horizontal boring kits, enabling expansion into landscape lighting installation and running sprinkler lines or cable under driveways and sidewalks.
A centrifugal clutch and torque tube truly enables safe, efficient one-man drilling, eliminating dangerous operator kickback and preventing jarring stops when an obstacle is encountered. Additionally, the innovative torque tube redirects torque kickback to the engine carriage instead of the drill’s handles. Other brands of drills reduce performance to accommodate one-man hole digging. But not Little Beaver. We feature all of the power without the inherent risks of other drills.
Hydraulic Earth Drill
Despite all the advantages of mechanical earth drills, a season full of drilling a large auger through hard packed clay and soft rock formations may leave mechanical drill owners envying their hydraulic-equipped competitors.
Hydraulic earth drills are your go-to drill for the most challenging soils because of their rugged bodies and powerful torque. Their high torque and precise operation at low speeds allows operators to drill clean, accurate holes, even in the most difficult applications. Hydraulic drills are ideal for drilling wide holes because they have the torque to drive large-diameter augers — some as wide as 16 inches — making them perfect for installing large fence posts, gate posts and any large-scale decorative fencing. Additionally, our hydraulic earth drills have a reverse position so you can safely back-out the auger if it becomes lodged under a rock or tree root.
While hydraulic drills don’t have a clutch to worry about, the operator could be at even greater risk of injury due to the large amounts of torque from these drills. This is where our torque tube is more important than ever as it allows a single operator to safely handle high levels of torque that would be an unthinkable risk with any other design.
Towable
Do the advantages of our hydraulic earth drills sound appealing for your fencing crew, but you need easier maneuverability and transportation while still maintaining high torque? If so, look no further than our Towable Hydraulic Earth Drill.
Our Towable drill consists of a T-shaped steel frame with highway-rated tires in the center, an 11-horsepower Honda engine located on one end and the auger and controls on the other. The frame balances the weight of the drill over the wheels, making it easy for one person to move, pivot into place and manage when drilling. The wide tires also prevent damage to delicate turf or landscapes.
The design reduces operating weight by roughly 50% compared to traditional hydraulic drills, and it requires less than 20 pounds of force to pivot into digging position. The frame also eliminates torque for safe one-person drilling. The rig can be conveniently towed using a removable “no tools” towing hitch, saving valuable truck or trailer space and making it an economical tool for fencing contractors of any size.
UN-Towable
If the maneuverability of the Towable is just what your fencing operation needs but you require more transportation options and a lighter package, our UN-Towable Hydraulic Earth Drill is the workhorse you’re looking for.
Like the Towable, our UN-Towable operates with a balanced design that makes maneuvering and operation a breeze, but it comes in a smaller package with greater transportability and still achieves drilling specs similar to that of the Towable.
Unlike the Towable, which must be towed behind a truck or loaded onto a trailer, the UN-Towable can be easily moved to the jobsite in the back of a pickup truck or SUV. Alternatively, an optional slide-in receiver hitch offers an additional transportation method. The user-friendly E-Z load bracket is designed to fit in any two-inch receiver, commonly found on most pickup trucks and SUVs. Simply secure the unit in the hitch, crank up the machine until it stops, and insert the pin to lock it in place. This allows fencing crews to carry more and do more without worrying about transportation logistics or expanding their fleet.
Additionally, smaller fencing crews or those needing more flexible transportation will benefit from the UN-Towable’s removable power pack. By detaching the power pack, the overall weight of the drill is reduced by 50%, allowing the machine to be easily transported in two parts.
Fencing can be tough work; don’t make it harder with an ill-suited drill. Consider your crew’s size, typical jobs and future needs to pick a drill that will help you excel at jobs today and give you a greater return on your investment down the road.
Last updated Mar 27, 2026
How Innovative Design Can Improve Operator Safety
Fencing contractors have come to rely on high-speed mechanical earth drills for quick hole digging — and for good reason. These powerful machines greatly increase productivity over manual methods, improving profits and ROI. However, some efficiency is lost on increased labor costs and safety concerns directly resulting from the brute force these machines employ. Some companies — like Little Beaver — have made improvements to the design to allow a single operator to drill safely, saving time, labor costs and reducing the possibility of injury to the operator and damage to the machine.
Torque Transfer
One-man drilling leaves the torque generated from a mechanical drill operating at 360 rpm in the hands of one person, a dangerous and potentially costly situation that can leave workers injured, jobs unfinished and insurance claims to be filed. It’s why Little Beaver builds its mechanical drills standard with steel torque tubes to prevent such situations from spinning out of control.
The steel torque tube transfers auger torque and kickback to a separate engine carriage instead of the drill’s handles. Little Beaver makes this possible by mounting the engine on a separate carriage and then connecting the engine to the drill via the torque tube. This makes one-man drilling a safe and efficient reality instead of a potential hazard.
But what happens when the kickback proves too much for the drill?
Centrifugal Clutch
Fence installers know the frustration of hitting tough objects, like roots or rocks, that can abruptly halt drilling at the expense of the operator or the drill itself. Quick changes in torque when drilling can destroy a transmission as easily as it can a shoulder. A centrifugal clutch helps to alleviate these hazards and headaches.
As the torque tube mitigates operator risk by reverting the torque back to the engine carriage, the drill’s transmission now takes on the risk of overloading from all the torque and drilling pressure or damage from encountering a buried object. This is where the centrifugal clutch kicks in. A drill equipped with a centrifugal clutch will automatically slip if it becomes overloaded or strikes an object that cannot be readily drilled through. Pairing this feature with a heavy-duty transmission limits the chances for auger and transmission damage or an untimely breakdown.
A centrifugal clutch, along with the steel torque tube, brings repair cost mitigation and safety maximization full circle. The increased safety of the operator combined with one-man operation and the decreased likelihood of a breakdown equals a smaller and more efficient crew that can take on more jobs.
Intuitive Design
Intuitive design leads to fluid operation. A drill operator shouldn’t need to waste time or focus searching for a switch or changing a cumbersome attachment. Time saving features like snap-on augers and handle-mounted on/off switches on Little Beaver drills help to improve operation, increasing efficiency and potentially saving the operator and machine from unnecessary harm.
There is no formula for increasing the number of jobs completed while decreasing labor input. Such a conundrum takes technological advances to overcome, and Little Beaver has done just that. Fencing crews can now complete jobs with less labor, freeing up time and budget to tackle more work safely.
