The Milwaukee M12 FUEL SURGE 1/4 in. Hex Hydraulic Driver is a compact 12V hydraulic driver built for quieter, smoother fastening than a standard impact driver. It delivers up to 3,200 RPM and 3,400 IPM in a 5.2 in. body with FLUID-DRIVE technology, 4-mode drive control, and reduced vibration. The 1/4 in. hex quick-change collet keeps bit changes fast, and the compact size helps when working from a belt or in tight spaces. It is best for service professionals, installers, and users who want M12 portability with lower noise in occupied spaces.
What makes the 2551-20 different from a normal impact driver?
It uses Milwaukee's hydraulic FLUID-DRIVE powertrain, which is meant to run quieter and with less vibration than a standard impact driver.
Does this include a battery or charger?
No. The 2551-20 is the bare-tool version and only includes the driver and belt clip.
What kind of work is this best for?
It is well suited for service calls, cabinet installs, maintenance, and other fastening tasks where quieter operation matters.
Is it compact enough for everyday carry?
Yes. Its 5.2 inch length and small M12 form factor make it easy to keep on a belt or in a smaller tool bag.
What bits fit the tool?
It uses standard 1/4 inch hex bits in a quick-change collet.
Should I choose this or the 3453 standard M12 impact driver?
Choose the 2551 if you want lower noise and smoother feel; choose the 3453 if you want the more conventional impact-driver style and higher top-end speed.
# Milwaukee M12 FUEL SURGE 1/4 in. Hex Hydraulic Driver **Model:** `2551-20` **Brand:** Milwaukee **Category:** Impact Driver > The Milwaukee M12 FUEL SURGE 1/4 in. Hex Hydraulic Driver is a compact 12V hydraulic driver built for quieter, smoother fastening than a standard impact driver. It delivers up to 3,200 RPM and 3,400 IPM in a 5.2 in. body with FLUID-DRIVE technology, 4-mode drive control, and reduced vibration. The 1/4 in. hex quick-change collet keeps bit changes fast, and the compact size helps when working from a belt or in tight spaces. It is best for service professionals, installers, and users who want M12 portability with lower noise in occupied spaces. ## Specifications | Attribute | Value | |---|---| | Product Type | Hydraulic Impact Driver | | Voltage (V) | 12 | | Cordless / Corded | Cordless | | Power Source | Battery | | Motor Type | POWERSTATE Brushless | | Tool Only | Yes | | Batteries Included | 0 | | Charger Included | No | | Piece Count | 2 | | Length (in.) | 5.2 | | Weight (lbs) | 2 | | Battery Platform | M12 FUEL | | Chuck Type | Hex Quick Change | | Chuck Size (in.) | 0.25 | | Max Speed (RPM) | 3,200 | | Maximum Ipm | 3,400 | | Drive Control Modes | 4 | | Hammer Function | No | | One Key Enabled | No | | Warranty | 5 Year Limited Warranty | ## What's Included - (1) M12 FUEL SURGE 1/4 in. Hex Hydraulic Driver (2551-20) - (1) Belt Clip Source: https://www.jaspecs.com/milwaukee/impact-driver/2551-20-m12-fuel-surge-1-4-hex-hydraulic-driver/