Blue Diamond® Extreme Duty Series 2 Auger offers the ultimate in performance, quality, and cost-effectiveness for excavators. Designed with high-grade materials and innovation, this attachment allows the gearbox to go down the hole, maximizing drilling depth while eliminating downtime. Our augers are perfect for drilling in most ground conditions. *Available to fit machines up to 60,000 lbs.
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Auger - Extreme Duty Series 2 - Excavator Features & Benefits

  • Compact high torque manufactured gearbox
  • 2 piece shaft design ensuring maximum side load ratings
  • 5-year gearbox warranty, 3-year motor warranty, and lifetime warranty on shaft pull-out

Auger - Extreme Duty Series 2 - Excavator Specs & Compare

MODEL EX1 EX2 EX3 EX4 EX4HF EX5HF EX6HF EX7HF
Part Number 305705 305708 305712 305715 305720 305725 305728 305730
Torque ft-lbs @ 3000 Ps 1,467 2,254 2,829 3,275 3,583 3,903 4,909 6,162
Max Torque ft-lbs 3500 Psi 1,712 2,630 3,300 3,821 4,180 4,553 5,728 7,189
Recommended Flow (GPM) 6-16 10-26 10-30 10-30 10-36 10-36 12-36 14-36
Peak Efficiency (GPM) 8-11 12-16 17-20 19-23 21-26 — — —
Motor Type Eaton Eaton Eaton Eaton Eaton Eaton Eaton Eaton
Max Pressure – Do Not Exceed 3500 psi @ 16 gpm 3500 psi @ 16 gpm 3500 psi @ 16 gpm 3500 psi @ 16 gpm 3500 psi @ 27 gpm 3500 psi @ 27 gpm 3500 psi @ 27 gpm 3500 psi @ 27 gpm
Max Flow – Do Not Exceed 30 gpm @ 1800 psi 30 gpm @ 1800 psi 30 gpm @ 1800 psi 30 gpm @ 1800 psi 42 gpm @ 3100 psi — — —
Max HP 33 33 33 33 55 55 55 55
Pressure Relief Valve N/A N/A N/A N/A Included Included Included Included
Standard Output Shaft 2″ Hex 2″ Hex 2″ Hex 2″ Hex 2″ Hex 2 1/2" Hex 2 1/2" Hex 2 1/2" Hex
Max Drilling Diameter Clay/Shale 12″ 24" 24" 24" 24" 24" 30" 30"
Max Drilling Diameter Earth 24″ 30” 30” 30” 40” 40" 40" 48"
Weight (lbs) 101 123 123 125 180 290 290 290
Overall Length (in) 24.5″ 25.9″ 25.9″ 25.9″ 29″ 33.7" 33.7" 33.7"
Diameter (in) 7.4″ 9.4″ 9.4″ 9.4″ 9.4″ 11.4" 11.4" 11.4"

 

MODEL EX1 EX2 EX3 EX4 EX4HF EX5HF EX6HF EX7HF
Max Diameter (shale/clay 12” 24” 24” 24” 24” 24” 30" 30"
Max Diameter (dirt) 24” 30” 30” 30” 40" 40" 40" 48”