Suits drives
9DDS through 16DDS
Drilling conditions
General earth and clay
Model
A8
Guaranteed Fit
Fast Shipping
Hassle-Free Returns
Description
Genuine Digga auger bit
Includes pin, clip, teeth and pilot
Overview
The Digga A8 is a general purpose heavy duty auger bit for earth and clay, cut with bladed teeth and available with multi-faced tungsten where the ground turns hard. It runs a 2.5 inch hex hub, with a 3 inch hex hub available as an option, suits Digga 9DDS through 16DDS drives, and is sold here in Light Conditions - Earth or Heavy Conditions - Hard Ground, in fourteen diameters from 8 to 60 inches on a 3 inch hex hub. Every bit comes with its pin, clip, teeth and pilot fitted.
Key Features of the Digga A8 Auger Bit
- General earth and clay — the condition Digga builds this bit for
- 2.5 inch hex hub, or 3 inch hex as an option
- 60 in overall length on a 3 - 6.5 in pipe
- Flights 3/8 in lead and 3/8 in carry
- TM bladed teeth, or TM-3 multi-faced tungsten, with the PM-HX-3 hex drive pilot
- Maximum diameter 70 in in the Digga range
- Suits 9DDS through 16DDS drives
- True Cut design — Digga builds these bits so a 12 inch auger drills a 12 inch hole rather than an oversized one
- Supplied complete with pin, clip, teeth and pilot
Digga A8 Specifications
| Specification | Value |
|---|---|
| Model | A8 |
| Drilling conditions | General earth and clay |
| Hub | 2.5 inch hex |
| Optional hub | 3 inch hex |
| Overall length | 60 in |
| Pipe diameter | 3 - 6.5 in |
| Flights (lead) | 3/8 in |
| Flights (carry) | 3/8 in |
| Teeth | TM bladed teeth, or TM-3 multi-faced tungsten |
| Pilot | PM-HX-3 hex drive pilot |
| Maximum diameter | 70 in |
| Suits drives | 9DDS through 16DDS |
Optimum Drilling Speed for the A8
| Ground | Drill speed (RPM) |
|---|---|
| Earth | 55-65 |
| Clay | 45-55 |
| Shale / fracturable rock | 25-45 |
| Heavy rock | Not suited |
Digga publishes these speeds because running a bit too fast in hard ground wears teeth without cutting. If your drive has a two-speed shift, this table is what the low range is for.
Which Drives Fit the A8?
Fitment is set by the hub, not the machine. The A8 has a 2.5 inch hex hub, which matches the output shaft on Digga 9DDS through 16DDS drives. A 3 inch hex hub is available if your drive uses that shaft. Where a drive and bit do not match, auger adapters convert between hub sizes, and auger extensions add depth below the bit. On this page the hub option reads 3" Hex Hub.
Where the A8 Sits Against Digga's Other Bits
- The A8 is the earth bit for its drive class — bladed teeth, shallow flight pitch, and the cheapest way to move soil and clay.
- With multi-faced tungsten teeth it will take granulated and soft fracturable rock. Digga does not rate bladed teeth for harder rock.
- Step across to a combination bit (RC8) if the ground turns from clay to rock, or to a dedicated rock auger (DR11) where it is rock all day.
On delivery: check the bit before you sign, and note any damage on the delivery receipt at the time of delivery. Photograph anything that looks wrong and email support@eskidsteer.com.
Digga A8 Auger Bit Questions, Answered
What size A8 do I need?
Match the diameter to the hole, not to the drive — then check the drive can turn it. Digga rates each drive to a maximum diameter in earth and a smaller one in clay or shale, and those figures are on the drive listings. The A8 is offered in Light Conditions - Earth or Heavy Conditions - Hard Ground, in fourteen diameters from 8 to 60 inches.
Will the A8 fit my auger drive?
If your drive has a 2.5 inch hex output shaft, yes — that covers Digga 9DDS through 16DDS. For a different shaft, auger adapters step between hub sizes, though an adapter adds length and a joint, so a matched hub is better where you have the choice.
Are teeth and pilot included?
Yes. Every Digga bit ships with pin, clip, teeth and pilot fitted. Teeth and pilots are wear parts, so they are also sold separately — for this bit, the tm bladed teeth and the PM-HX-3 hex drive pilot.
How deep can I drill?
The A8 is 60 in overall, and the drive adds its own length above it. To go deeper, auger extensions fit between the drive and the bit. Two shorter extensions are usually more practical than one long one, because the whole stack has to be lifted clear of the hole.
When do teeth need changing?
When the cutting edge has worn back and the bit slows or starts wandering. Replacing teeth is far cheaper than wearing into the pockets or the flights, which are the expensive parts of the bit.
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.
Shipping
The following are estimated processing and delivery times. We make every effort to fulfill orders as quickly as possible.
We only deliver within the United States. If a package can’t be delivered due to an error entering your shipping address, Eskidsteer is not responsible for any additional fees that may incur to reroute or reship the package.
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Shipping fee:
Delivery Time= Handling time +Transit Time:
Handling time: 3-3 Days
Transit time: 5-8Days
Order cut off Time: 5:00 PM (GMT-05:00) Eastern Standard Time (New York)
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Phone: +1 8667578337
Email: support@eSkidsteer.com
Address: 30 North Gould St Suite R, Sheridan, WY 82801, USA
Returns
Returns
We offer returns and exchanges in limited circumstances as follows:
- In order to submit a return, you must contact us by email at support@eSkidsteer.com for us to confirm the items ordered are eligible for return or exchange;
- To be eligible for a return, you must commence the return process within 30 days of your item being delivered to you and:
- it must be unused, for example, once an item is hooked up to an attachment plate, hydraulic lines or electrical connection, it will not be eligible for return. Likewise, if your item shows any sign of use, which we may determine in our sole and absolute discretion, we will not accept the return;
- it must be in the same condition you received it in. You will be required to send us timestamped photos of the condition of your items as a condition to determine your eligibility for the return or exchange; and
- it must be returned in the same packaging or containers as it was received in.
We do not accept returns for products that were listed as final sale items at the time of purchase.
You agree to pay a 25% restocking fee on all returns, which we will deduct from any refund owing to you.
After the above referenced 30-day period, unfortunately we cannot offer you a refund or exchange, under any circumstances.
If your return or exchange is approved, we will provide instructions on shipping your items back to us or the applicable supplier via email.
You agree that you shall be responsible for all return shipping costs and related expenses.
Our shipping cost to you is not refundable.
You are also responsible for ensuring the items are carefully packaged for shipment and that risk of loss or damage during return shipping shall be your sole liability. You may wish to obtain insurance while the returned items are in transit.
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