SKU: 78967978182

HD99 - Honda® Powered Hydraulic Earthdrill Auger

Sale price$2247.75 Regular price$2497.50
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Ships within 48 hours · Estimated delivery Sep 25 - Sep 30

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Description

HD99 - Honda® Powered Hydraulic Earthdrill AugerPart Number: HD99 H The Ground Hog Inc HD99 is a Towable Hydraulic Earthdrill that is designed to be powerful, easy to use and require very little maintenance. The HD99 is the most powerful Earthdrill in the Ground Hog Inc line. With it's Honda GX270 engine, the HD99 can easily dig with any Ground Hog auger up to 18 inches in diameter. The use of hydraulics allows the HD99 to have variable auger speed and reverse which is very useful if the auger gets

Part Number: HD99-H

The Ground Hog Inc HD99 is a Towable Hydraulic Earthdrill that is designed to be powerful, easy to use and require very little maintenance.

The HD99 is the most powerful Earthdrill in the Ground Hog Inc line. With it's Honda® GX270 engine, the HD99 can easily dig with any Ground Hog auger up to 18 inches in diameter. The use of hydraulics allows the HD99 to have variable auger speed and reverse which is very useful if the auger gets stuck.

The HD99 is designed to take the load off of the operator by being almost perfectly balanced with an 8-inch auger attached, and the right angle design eliminates torque to the operator. There are also 3 handlebar positions that allow for normal drilling, as well as close up drilling next to an obstacle such as a wall or fence. The drilling head also pivots from side to side for drilling on uneven terrain. Large highway rated tires make the HD99 easy to maneuver around the job site and there is a locking mechanism on the digging head that allows the auger to be held up and out of the way for moving the machine around the job without having to disconnect the auger.

The heavy duty powder coated steel construction of the HD99 uses a pivoting engine cradle that protects the engine and lets it stay level for proper oiling and longer life. The low profile and compact design of the frame eliminates the need for telescoping booms and axles and allows the unit to be transported in the bed of a small truck. The HD99 also comes equipped with a tow-bar with a 2" Ball hitch coupler and safety chains for surface street and jobsite transport.

The hydraulic system used on the HD99 is extremely reliable and requires very little maintenance compared to mechanical systems, and the HD99 uses high quality Parker components. Typical maintenance that is usually required is simply to check or change the hydraulic fluid and engine oil and replace the hydraulic filter. The uniquely shaped fluid reservoir holds 3 gallons of fluid while having a large amount of surface area to dissipate heat for higher efficiency. The reservoir has a dipstick for checking the fluid level and the drain plugs for the hydraulic fluid. The drain plug for the engine oil, as well as the hydraulic filter, are easy to access and use without making a mess.

The Ground Hog Inc HD99 is a powerful, well designed earthdrill you can rely on!  The HD99 makes easy work of the hardest post hole digger jobs.

 

Key Features:

  • Variable speed, Forward and Reverse auger rotation
  • Three handlebar positions; two for normal drilling and one for close up drilling and towing
  • Drilling head pivots from side to side for drilling on uneven terrain
  • Zero torque transfer to the operator
  • Engine frame swivels to keep engine level for optimum performance
  • Replaceable steel bushing at pivot points
  • Auger locks up out of the way for easy maneuvering
  • Durable powder coated finish
  • Large 5.70×8 pneumatic highway rated tires for easy maneuvering and towing
  • Towable. Includes tow bar with 2” Ball hitch coupler
  • 7/8” Square Auger Drive to use with Pengo Style Auger BitsCombo Style Auger Bits, & Standard Style Auger Bits Auger Bits Sold Separately.
  • 18" Maximum Auger Diameter 
  • Honda® GX270 4-Cycle Gas Engine
  • 275 ft. lbs. of torque and 140 rpm approx. max. auger speed
  • 6 gpm pump
  • High pressure hydraulic swivels for free digging head movement and longer hose life

 

SHIP TO ADDRESS - RESIDENTIAL OR COMMERCIAL

- COMMERCIAL ADDRESSES - FREE Shipping is offered on equipment shipped to locations that DO NOT REQUIRE LIFTGATE SERVICE via LTL SEMI TRUCK FREIGHT. Equipment offered on our website are shipped on a pallet & very heavy. It is the customer's (your) responsibility to unload the equipment upon delivery. A dock and/or Forklift are required to unload the pallet / equipment upon delivery. Contact Phone Number will be required in order to coordinate delivery day/time. WorkHorse Equipment & Parts will not be responsible for costs incurred for unsuccessful or refused shipments.


- RESIDENTIAL ADDRESSES - IF you are shipping your Auger or Trencher to a residential address and do not have access to a forklift or dock for delivery, we offer a LIFTGATE SERVICE shipping option for $100. LIFTGATE SERVICE means the delivery truck will be able to bring the pallet down to the ground for you from inside of the Truck. Contact Phone Number will be required in order to coordinate delivery day/time. WorkHorse Equipment & Parts will not be responsible for costs incurred for unsuccessful or refused shipments. 

If you still have questions regarding our Shipping Policy, Please contact us via email at: [email protected]

 

Shipping Dimensions: 36"x72" - 295lbs

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 78967978182

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Amazon Customer
Pawtucket, US
★★★★★ 3
Ehh
Size: Medium, Color: Multicoloured E-(5-pack)
Very thin, still comfy but very thin material. Super soft though. I've worn and washed and they have held up but I won't be repurchasing bc these are so thin
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Reviewed in the United States on April 14, 2026
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Grma4m&m
Lowell, US
★★★★★ 5
They’re fantastic!!!!
Size: X-Large, Color: Multicoloured E-(5-pack)
My clothing size is 16/18 and XL. Even though Amazon suggested a size XXL, I ordered my normal XL and they fit perfectly. The fabric for this style is 92% bamboo viscose and is amazingly soft and almost silky feeling. I had ordered a different boy short in this brand but they were 80% bamboo viscose and the fabric was significantly heavier. I returned those and ordered these.
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Reviewed in the United States on April 25, 2026
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Liz Newman
Pawtucket, US
★★★★★ 5
Comfortable and cool. Does not ride up.
Color: 01-multicolour (4-pack), Size: Medium
Extremely comfortable. Stays cool. Ample coverage. Quality material. They do not creep up. I ordered a medium which I generally take a size small. I have reordered and will reorder again to add more colors to my collection.
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Reviewed in the United States on May 18, 2026
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Janola
Birmingham, US
★★★★★ 5
Great Value for Cool Thigh Protection
Color: 02-multicolour (4-pack), Size: XX-Large
For the price, I'm not sure there are better women's boxer shortlettes anywhere. I've tried more expensive brands, and for quality and cooling, these are right up there. I have other bamboo viscose undies that still get gross when I get sweaty in the summer, but these, with the large mesh panel, really help wick away a lot of that moisture, keeping you feeling dryer and cooler. I find that the leg openings are comfortable and don't roll up! and the waist band doesn't dig, nor does it roll down. These do not provide any compression, and I wasn't looking for any. I just wanted some cooling, thigh protecting women's boxers that wouldn't break the bank. These are them! Bonus- I've washed them and put them in the dryer (following their instructions), and they haven't shrunk; they look about the same and are nice and soft.
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Reviewed in the United States on July 28, 2025
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Reviewer
Natrona Heights, US
★★★★★ 4
Great for the entire family but expensive
So far so good. The brand of boxers we had been buying changed their style and construction so we needed to find an alternative. These have held up well so far to multiple weeks of frequent washing and wearing from the entire family. We did size up from the usual 6/M we normally buy and ordered large to prevent the legs from rolling up which worked out great. Our daughter likes the length and how soft the fabric is for wearing under skirts and gym shorts and liners stay put without moving or leaking as another reviewer mentioned. Our son says they are comfortable and fit well being just supportive enough without being constrictive. We all agree that there seems to be not enough fabric in the back as they tend to be much tighter across the backside than the front and that also causes the waist band to ride lower in the back than the front. These have better seam placement than some brands we tried with no seam across the lady bits and no seam down the middle of the back side so they are more much comfortable but the cost is also much higher and that is why we're only giving it 4 stars. These will stay in the rotation until we find something cheaper that both us and the kids like.
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Reviewed in the United States on January 24, 2026

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