Digga RC4 Combo Bit 8"-12"-18"-24"
RC4 auger bits are offered with various tooth configurations to tackle a wide range of ground conditions, including earth, hard soils, shale, clay, and permafrost. Find the perfect match for your drilling needs and ensure optimal performance with our versatile selection.
About the Product
Product Features
The RC4, an advanced tool designed to deliver all the benefits of the A4 model with the added advantage of superior penetration thanks to the B7 taper tooth head. Perfect for a variety of drilling applications, the RC4 comes equipped with versatile taper teeth, ideal for combination drilling across all conditions—from earth to medium rock—ensuring a clean, efficient hole every time. With the RC4, you can count on easy installation and removal of teeth, thanks to Digga's innovative knock-in, knock-out tooth locking system. This unique feature eliminates the need for extra tools, making maintenance quick and hassle-free. Upgrade your drilling equipment today with the RC4 for unmatched performance and convenience!
- Durable tube made from premium-grade steel
- Shallow pitch flights designed for efficient spoil removal
- True Cut design guarantees a 12” auger drills a precise 12” hole
- Complete range of drive adaptors and extensions available to enhance drilling depth
Product Specs
Model
DG-RC4-08-3-MFT
DG-RC4-12-3-MFT
DG-RC4-18-3-MFT
DG-RC4-24-3-MFT
Weight (lbs)
135 lbs
166 lbs
195 lbs
233 lbs
Width (in)
8 in
12 in
18 in
24 in
Drilling Conditions:
General Information
Hub:
2" Hex
Optional Hub:
(N/A)
Overall Length:
48"
Pipe Size:
2.375" - 4.5"
Flights:
Lead 5/16"; Carry: 5/16"
Teeth:
TTD / TTs
Pilot:
Pm-HX-3
Maximum Size:
48"
Ideal Drives:
1MDS-4DSS
Optimum Drilling Speeds:
Earth: 55-65 RPM
Clay: 45-55 RPM
Shale (fracturable rock): 20-45 RPM
Heavy Rock: Not Available (N/A)
Auger Features:
Double start, single carry flight configuration.
Shallow flight pitch for better soil retention.
Heavy-duty auger body for increased wear resistance and performance.
Digga
For over 40 years, Digga has been a pioneer in the design, manufacturing, and distribution of high-quality attachments. With expertise in auger drives, anchor drives, and trenchers, Digga is your go-to choice for any ground-penetration needs.

Our warranty policy lasts 30 days. If 30 days have passed since your purchase, we can’t offer you a full refund or exchange.
Warranty PolicyAt Forge Attachment Company, we strive to provide efficient and reliable shipping for all our heavy equipment attachments. Please read the following shipping policy to understand how your order will be processed and delivered.
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