Description
Subcompact Power. Intelligent Control. Professional Results.
The ACDelco ARI12185P is a high-performance 1/4″ Hex Brushless Impact Driver built for the modern mechanic. Delivering 125 ft-lbs (170 Nm) of torque in a tiny 5-inch frame, this G12 series tool is the perfect balance of massive power and precision maneuverability.
Why Choose the G12 Brushless Impact Driver?
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Industry-Leading Torque: 125 ft-lbs of fastening power, 70% more than standard brushed models.
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4-Mode Drive Control: Features Intelligent Auto-Stop and Speed Down modes to prevent snapping heads off screws or over-tightening.
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Ultra-Compact Design: At only 5″ long, it goes where other drivers can’t—perfect for dash work and tight engine bays.
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Brushless Reliability: No brushes to replace, less heat, and longer tool life.
Technical Specifications:
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Drive: 1/4″ Hex Shank
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Max Torque: 125 ft-lbs (170 Nm)
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Speed: 4-Mode (Up to 3,600 RPM)
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Length: 5″ (127 mm)
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Weight: 1.54 lbs
What’s in the Box:
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(1) ARI12185 1/4″ Brushless Impact Driver
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(1) G12 Li-ion 12V 2.0Ah Battery Pack
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(1) Intelligent Fast Charger
3. Technical Specs Table
| Feature | Specification |
| Voltage | 12V DC |
| Max Torque | 125 ft-lbs (170 Nm) |
| No Load Speed | 0-3,600 RPM |
| Impact Rate | 0-4,500 IPM |
| Chuck Size | 1/4″ Hex Quick Release |
| Head Length | 5 Inches (127 mm) |
| Warranty | 1-Year Limited |












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