BLUE DIAMOND Auger Drive - Extreme Duty Series 2

The Blue Diamond Extreme Duty Series 2 Auger Drive is engineered for serious digging with skid steers, delivering deep, precise holes in a wide range of ground conditions. Its compact, high-torque gearbox and two-piece shaft design maximize drilling depth while minimizing downtime, so you can complete more jobs in less time.

Features

• Compact high-torque gearbox for efficient power transfer
• 2-piece shaft design to maximize side-load ratings and durability
• Gearbox designed to extend down the hole, increasing drilling depth and reducing downtime
• Wide compatibility across models: standard 2" HEX shaft (EX1–EX4); 2" HEX or 2.5" HEX on HF models
• Robust warranty package: 5-year gearbox, 3-year motor, lifetime shaft pull-out
• Available in a full lineup (EX1–EX7HF) to match flow, pressure, and bit size needs
• High-performance hydraulics: tuned for up to 30 GPM in standard units and up to 42 GPM with HF configurations
• Built to handle large-hole work: clay and dirt hole sizes scaled by model, with HF variants offering larger clay and dirt capacities

Use case overview by model

• EX1–EX4: Ideal for standard to mid-range hole sizes and soil conditions. Torque ranges from 1,467 to 3,275 with 6–16 GPM (EX1) up to 10–30 GPM (EX4). Capable of drilling clay holes up to 12" and dirt holes up to 24–30".
• HF models (EX4HF–EX7HF): Built for higher flow and larger holes. Torque ranges from 3,583 to 6,162 with 10–36 GPM (and peaks to 21–26 GPM). Bit sizes extend to 24"–40" clay and 40"–48" dirt, depending on the exact model, with higher flow and horsepower options.

Benefits

Maximize drilling depth without sacrificing reliability. The Extreme Duty Series 2 auger drives down the hole, enabling deeper post-hole drilling and more complete trenching in a single setup. The 2-piece shaft and rugged gear train withstand demanding side loads, reducing wear and downtime on busy projects. The broad model lineup ensures you can match your skid steer’s hydraulic capacity to the task, from compact fence-post holes to large-diameter soil borings.

Who this is for: professional landscapers, fence installers, deck builders, concrete contractors, rental fleets, and anyone using a skid steer for heavy-duty auger work. It’s particularly well-suited for environments with hard clay, dense soil, or variable ground conditions where downtime and tool wear can impact project timelines.

Practical tips for best results:

• Match the HF models to higher flowing hydraulic systems to unlock larger hole capacities and faster drilling.
• Use the correct bit size within the model’s clay and dirt limits to optimize wear and drilling efficiency.
• Leverage the gearbox-down-hole capability to achieve maximum depth on challenging soils, reducing the need for repositioning.
• Ensure the skid steer hydraulic capacity aligns with the model’s GPM and PSI requirements for steady, reliable performance.
• Take advantage of the extended warranties for peace of mind on demanding projects.