About this product
Overview
At 6,164 ft-lbs the 7DDS is the most torque Digga puts in a single-speed high flow skid steer auger attachment, and the only one in the range that drills to 48 inches in earth. On this page it comes three ways: Drive Only if you already have a frame, on the Universal Quick Attach Frame Package with 7 ft hoses and flush-face disconnects, or on the Extension Frame (TPE) Package, Digga's telescopic piling and drilling extension.
Key Features of the Digga 7DDS Skid Steer Auger Package
- Torque 6,164 ft-lbs at 3,000 PSI and 7,177 ft-lbs at 3,500 PSI, as published by Digga for the 7DDS
- Recommended flow 14-36 GPM, with 14 GPM the floor for rated torque
- 2.5 inch hex output shaft taking A6 earth auger bits, RC6 rock and earth combo bits and DR6 dedicated rock augers
- Drills to 48 inches in earth and 30 inches in clay or shale, subject to ground conditions
- Digga gearbox with an integrated pressure relief valve, so no external valve block and fewer joints to leak
- The gearbox follows the bit down the hole, so drive height is not lost from drilling depth
- HALO Alignment Kit optional — HALO built into the drive hood at the factory, reading plumb to ±0.25 degrees per Digga
- 2-piece shaft design carries side load without putting it through the bearings
- 5 year gearbox and 3 year motor warranty for drilling use, plus lifetime shaft pull-out cover
Digga 7DDS Specifications
Figures as published by Digga for the 7DDS. Maximum drilling diameter depends on ground conditions and is a guide rather than a rating.
Choosing How the 7DDS Mounts
The TPE is engineered for drives up to 16,000 ft-lbs, so the 7DDS sits well inside it. One thing to plan for: a drive working 12-14 ft down needs more hose than the 7 ft set, and Digga's TPE hose kits come in 14 ft and 16 ft for exactly that. Tell us if the package is for TPE work and we will confirm hose length with the order.
HALO Alignment Kit
Every 7DDS on this page — both frame options and Drive Only — can be taken with No HALO or with the HALO Alignment Kit. Despite the name it is not a bolt-on: choosing it supplies the 7DDS with HALO built into the drive hood at the factory, with the extension cable and in-cab 12V plug. A ring of green lights means plumb; red and green guide the operator back when the drive drifts. On a one-person crew it replaces the spotter at the hole.
What Comes in the 7DDS Skid Steer Package
- Digga 7DDS auger drive
- Universal skid steer frame and 75mm linkage, or the TPE extension frame, unless you choose Drive Only
- 7 ft hoses with flush-face quick disconnects on the frame package
- HALO where the HALO Alignment Kit is selected
- Not included: auger bits
Where the 7DDS Sits in Digga's High Flow Range
Against the 6DDS, the 7DDS adds 26 percent more turning force, while asking 14 GPM rather than 12. Nothing larger is offered on the 2.5 inch hex shaft — above the 7DDS, Digga moves to the 9K drives and a bigger machine class. The 7DDT is the two-speed version of the same size at 6,308 ft-lbs, shifting between torque and speed while drilling and needing a case drain return. Max speed is 54 RPM, against 80 on the 7DDT.
Which Loaders Fit the 7DDS?
The 7DDS package mounts on the universal skid steer quick attach plate, so fitment is decided by hydraulics rather than brand. The 7DDS needs a high flow auxiliary circuit and at least 14 GPM to reach the torque above.
Add the 7DDS package to your cart to see delivered pricing for your address. Enter your machine make and model with the order and we check the fit before it ships.
Drilling or anchoring? Digga warrants this drive for 5 years on the gearbox and 3 on the motor when it is used for drilling. Used for screw anchoring without Digga's Energy Control Valve, warranty drops to 2 years on the gearbox and 1 on the motor, and covers anchoring only up to 12,000 ft-lbs. The ECV has to be specified with the drive rather than added later, so tell us before ordering if anchoring is the job.
Digga 7DDS Skid Steer Package Questions, Answered
Is my loader high flow enough for the 7DDS?
High flow is an option on most loaders rather than standard, and the machine badge or operator manual gives the auxiliary flow in GPM. The 7DDS needs 14 GPM to reach its rated torque and uses up to 36 GPM. A standard-flow machine will turn the drive but will not produce the figures in the table.
What does the TPE frame actually do?
It replaces the fixed frame with a telescopic extension, so the drive travels down past machine reach. Digga states it extends to 12 to 14 feet of ground clearance, which is how a deep hole gets drilled without stacking bit extensions and losing alignment.
Should I step up to the two-speed 7DDT?
A two-speed drive shifts between a high-torque and a high-speed range while drilling, and the high-speed range earns its money on large diameters where clearing spoil takes the time. For holes under about 18 inches in ordinary ground, the single-speed drive does the same work for considerably less.
Can I buy the 7DDS without a frame?
Yes — that is the Drive Only choice, and it is the first option on this page. It suits anyone replacing a worn drive on a frame they already own. Check the linkage on your frame is the 75mm size before ordering; the Auger Drive Mount Linkages listing has it if not.
Which auger bits should I order?
All three Digga families for the 2.5 inch hex shaft fit: A6 earth auger bits for general earth and clay, RC6 rock and earth combo bits where the ground is mixed, and DR6 dedicated rock augers for fracturable rock. The 7DDS is rated to 48 inches in earth and 30 inches in clay or shale.
Is the HALO Alignment Kit worth adding?
It replaces the second person standing at the hole calling the auger straight. On a one-person crew, or where holes are inspected for plumb, it pays for itself quickly. On occasional fence work with a spotter already on site it is optional.
How is shipping calculated?
Shipping is calculated at checkout from the weight of your order and your delivery address, and the charge is shown before you complete the order. These packages ship by LTL freight on a pallet.
On delivery: inspect the crate before you sign. Note any damage on the bill of lading at the time of delivery, photograph it, and email support@eskidsteer.com — a clean signature makes a carrier claim much harder to win.
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