V20 Cordless 1/2-in Impact Wrench (Tool Only) delivers the torque to get the job done easing the removal of large fasteners. Featuring a variable speed trigger which allows the user to have additional control over their applications. This tool-only configuration is intended for buyers who already own a compatible V20 battery and charger.
Is the CMCF900B compatible with CRAFTSMAN V20 batteries, and what size pack makes the most sense?
Yes. The CMCF900B runs on the V20 platform. Smaller packs keep the tool lighter, while 4Ah and 6Ah packs are better when you want longer runtime or you are driving a higher-draw tool.
When should you choose the CMCF900B as sold versus another package option?
Because the CMCF900B is tool-only, it is the better value if you already own a charger and enough V20 batteries.
What do the key specs on the CMCF900B mean in actual use?
The headline numbers are 1700 RPM, 4200 in-lbs of torque, 0.5 in. chuck. Brushed motor construction affects efficiency and heat.
How much does the CMCF900B's brushed motor matter to a buyer?
A brushed CMCF900B is the value choice. It can still be the right fit for intermittent jobs, but frequent users usually notice the runtime and performance advantage of brushless alternatives.
What kind of buyer is the CMCF900B aimed at?
The CMCF900B is for someone choosing around its actual numbers and package contents, not just the brand name: CRAFTSMAN V20 Cordless 1/2 in. Impact Wrench (Tool Only) with 1700 RPM, 4200 in-lbs of torque, 0.5 in. chuck.
# CRAFTSMAN V20 Cordless 1/2 in. Impact Wrench (Tool Only) **Model:** `CMCF900B` **Brand:** CRAFTSMAN **Category:** Impact Wrench > V20 Cordless 1/2-in Impact Wrench (Tool Only) delivers the torque to get the job done easing the removal of large fasteners. Featuring a variable speed trigger which allows the user to have additional control over their applications. This tool-only configuration is intended for buyers who already own a compatible V20 battery and charger. ## Specifications | Attribute | Value | |---|---| | Product Type | Impact Wrench | | Voltage (V) | 20 | | Cordless / Corded | Cordless | | Power Source | Battery | | Motor Type | Brushed | | Tool Only | Yes | | Batteries Included | 0 | | Charger Included | No | | Piece Count | 1 | | Battery Platform | V20 | | Barcode (UPC) | 885911563147 | | Country of Origin | China | | Warranty | 3-year limited | | Chuck Size (in.) | 0.5 | | Max Speed (RPM) | 1,700 | | Variable Speed | Yes | | Hammer Function | No | | Max Torque (in-lbs) | 4,200 | | No Load Rpm | 1,700 | ## What's Included - (1) V20 Cordless 1/2 in. Impact Wrench (Tool Only) - Battery and charger sold separately Source: https://www.jaspecs.com/craftsman/impact-wrench/cmcf900b-1-2-in-impact-wrench-tool-only/