M4 auger series features heavy-duty rock auger bits designed for Mini Loaders, Skid Steer Loaders up to 80hp, Excavators between 1T–5T, and Truck Cranes up to 9T/metre. Built with a rock pilot and tungsten carbide teeth, the M4 auger delivers outstanding drilling performance and long-lasting durability across a wide range of soil conditions.
Available in diameters from 150mm (6″) to 300mm (12″), with lengths up to 1.2 meters, this series is fully interchangeable with Auger Torque S4, Digga A4, and Digga RC4 auger systems-making it a versatile and cost-effective solution.
Key Features
65mm round or 2.5" hex shaft, compatible with all standard S4 auger drives
Heavy-duty rock pilot and tungsten carbide teeth for enhanced penetration in compacted soil and light rock
Robust single-flight design with reinforced welds for high torque applications
Optimized for 1–5 ton excavators, skid steers up to 80hp, and mini cranes
Custom diameters (150mm–300mm) and lengths (up to 1.2m) available on request
Fully interchangeable with Auger Torque S4, Digga A4, and RC4 series
Ideal for fencing, landscaping, tree planting, utility pole installation, and small foundation drilling
Performs exceptionally well in challenging conditions like clay, sand, and light rock, thanks to its rock pilot and tungsten carbide teeth
Designed to fit standard S4 drive systems, ensuring seamless integration with CAT, Bobcat, Kubota, JCB, and other major brands
Compatible with popular mini excavators such as CAT 301.5, Kubota U35, Bobcat E35, JCB 8025
Suitable for skid steer loaders including Bobcat S70, Caterpillar 226D, John Deere 317G, and other compact machines
Delivers reliable drilling performance and exceptional tool life across construction, agriculture, and utility projects
A premium choice among rock auger bits for professional-grade results in compact equipment applications
Specifications
(Example: Matched with 4500Nm Drive)
| Auger Dia (mm) |
Drilling depth(cm) | ||
| Soft | Medium | Hard | |
| 100 | 350 | 300 | 250 |
| 150 | 350 | 300 | 250 |
| 200 | 350 | 300 | 250 |
| 225 | 300 | 250 | 200 |
| 250 | 300 | 250 | 200 |
| 300 | 300 | 250 | 200 |
| 350 | 250 | 230 | 180 |
| 400 | 250 | 230 | 180 |
| 450 | 200 | 180 | 150 |
| 500 | 200 | 180 | 150 |
Selection Guide
Machines:
Mini Loaders, Skid Steer Loaders max 80hp, 1–5T Excavators, Truck Cranes up to 9T/m
Applications:
Fencing, Tree Planting, Pole Installation, Foundation Drilling
Sizes:
Ø150mm–900mm, Length ≤1.2m
Shaft Options:
65mm Round, 2" Hex, 57mm Square
Interchangeable With:
Auger Torque S4, Digga A4 / A4 RC4 / A4 TC or others
Dimension
Application
CNC machines
Measurement and Testing
Painting and Packing
Exhibition
Certificate
Partner
Hot Tags: rock auger bits, China rock auger bits manufacturers, suppliers, factory, auger bits for mini excavator, auger for 1 5 ton excavator, Auger torque auger bits, compatible with Digga A4, Digga bits, Rock Auger Bits
