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GB120 Grader Blade

Cat® Smart Grader Blade attachments are for cutting, moving and grading dirt, gravel, sand and virtually any other material used as a base.



  • Cat® Smart Grader Blade at Work
  • Cat® Smart Grader Blade with Assist
  • Cat® Smart Grader Blade at Work
  • ConExpo Demonstration of Cat® Smart Grader Blade
  • Cat® Smart Grader Blader Operator Tips
  • Cat® Smart Grader Blade Features and Benefits
  • An Attachment for Every Job - Cat® Work Tool Attachments

360° View


Model shown represents features on all Cat® Grader Blades except where indicated.



  • General
    Spec Value
    Overall Width 78.4 in
    Blade Width 78 in
    Width - Fully Angled 68.8 in
    Optimal Hydraulic Flow 50-86 L/min (13-23 gpm)
    Optimal Hydraulic Pressure 180-230 bar (2600-3340 psi)
    Required Hydraulics Standard Flow
    Overall Length 88.4 in
    Overall Height with Masts 104.4 in
    Overall Height 41.2 in
    Weight 1970.9 lb
    Tilt Angle Range +/- 15 degrees
    Maximum Blade Angle - Right/Left of Center 30 degrees
    Blade Height 17 in
    Ground Clearance 6 in
    Maximum Cutting Depth 4 in
    Interface Type Skid Steer Coupler