Compact M18 FUEL impact driver with ONE-KEY, POWERSTATE brushless motor, up to 3,900 RPM, and a short 4.49 in. body.
Does the 2957-20 include a battery or charger?
No. It is sold as a bare tool.
What collet does it use?
It uses a 1/4 in. hex quick-change collet.
Does this version support ONE-KEY?
Yes. This is the ONE-KEY-enabled version.
# Milwaukee M18 FUEL 1/4 in. Hex Impact Driver w/ ONE-KEY **Model:** `2957-20` **Brand:** Milwaukee **Category:** Impact Driver > Compact M18 FUEL impact driver with ONE-KEY, POWERSTATE brushless motor, up to 3,900 RPM, and a short 4.49 in. body. ## Specifications | Attribute | Value | |---|---| | Product Type | Impact Driver | | Voltage (V) | 18 | | Cordless / Corded | Cordless | | Power Source | Battery | | Motor Type | POWERSTATE Brushless | | Tool Only | Yes | | Batteries Included | 0 | | Charger Included | No | | Piece Count | 1 | | Length (in.) | 4.49 | | Weight (lbs) | 2.3 | | Battery Platform | M18 FUEL | | One Key Enabled | Yes | | Warranty | 5-year limited | | Chuck Type | Hex Quick Change | | Chuck Size (in.) | 0.25 | | Max Speed (RPM) | 3,900 | | Maximum Ipm | 4,400 | | Hammer Function | No | ## What's Included - (1) M18 FUEL 1/4 in. Hex Impact Driver w/ ONE-KEY (2957-20) Source: https://www.jaspecs.com/milwaukee/impact-driver/2957-20-m18-fuel-1-4-hex-impact-driver-w-one-key/