# TLDR Review: CRAFTSMAN V20 RP Impact Wrench CMCF940M1

*Published: 2026-02-06 | Updated: 2026-02-06 | Source: https://shopsavvy.com/reviews-tldr/craftsman-v20-rp-impact-wrench-cmcf940m1*

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## Verdict

The CRAFTSMAN V20 RP Impact Wrench (CMCF940M1) stands out as a powerful, versatile cordless impact wrench well suited for automotive repairs and general fastening tasks. Its brushless motor and high torque ratings deliver performance that rivals more expensive models, combined with solid battery life and convenient features like an LED light and variable speed. However, potential buyers should be aware of its heavier weight compared to traditional air tools and the slight risk of internal wear—consider adding a warranty for peace of mind. For those prioritizing cordless convenience and strong torque in one package, this tool definitely deserves a spot in your toolbox.

**Top pro:** Delivers impressive torque with 700 ft-lbs of fastening torque and 1000 ft-lbs of breakaway torque, easily handling overtorqued lug nuts and tough automotive tasks.
**Top con:** The tool is heavier and bulkier than traditional pneumatic air impact wrenches, which may require some getting used to.

## Product: CRAFTSMAN V20 RP Impact Wrench CMCF940M1
[Compare prices and price history on ShopSavvy](https://shopsavvy.com/products/craftsman-v20-rp-impact-wrench-cmcf940m1)

## Pros
- Delivers impressive torque with 700 ft-lbs of fastening torque and 1000 ft-lbs of breakaway torque, easily handling overtorqued lug nuts and tough automotive tasks.
- Brushless motor and three-speed transmission give excellent control and power efficiency for a variety of fastening applications.
- Cordless design with a 4Ah battery offers strong battery life that holds charge well and charges quickly, suitable for long jobs without frequent recharges.
- Compact and comfortable to hold, making it practical for automotive work in tight spaces and easy to carry around.
- Equipped with a variable speed trigger and LED light, enhancing usability and visibility in dark or hard-to-reach areas.
- Durable glass-filled nylon housing protects the tool in automotive environments.
- Hog ring anvil simplifies socket changes, speeding up workflow.
- Compatible with other Craftsman V20 batteries, providing flexibility and backup power sources.
- Strong enough to replace weak spare tire tools and trusted for DIY roadside or home auto repairs.

## Cons
- The tool is heavier and bulkier than traditional pneumatic air impact wrenches, which may require some getting used to.
- Some users experienced a temporary seizing during heavy use, possibly indicating internal wear; a warranty might be advisable.
- Brushless motor delay when releasing the trigger can feel a bit different compared to pneumatic tools.
- The included carrying bag is fairly thin and may wear out quickly with frequent use.

## Pros vs Cons at a Glance

| Pros | Cons |
|------|------|
| Delivers impressive torque with 700 ft-lbs of fastening torque and 1000 ft-lbs of breakaway torque, easily handling overtorqued lug nuts and tough automotive tasks. | The tool is heavier and bulkier than traditional pneumatic air impact wrenches, which may require some getting used to. |
| Brushless motor and three-speed transmission give excellent control and power efficiency for a variety of fastening applications. | Some users experienced a temporary seizing during heavy use, possibly indicating internal wear; a warranty might be advisable. |
| Cordless design with a 4Ah battery offers strong battery life that holds charge well and charges quickly, suitable for long jobs without frequent recharges. | Brushless motor delay when releasing the trigger can feel a bit different compared to pneumatic tools. |
| Compact and comfortable to hold, making it practical for automotive work in tight spaces and easy to carry around. | The included carrying bag is fairly thin and may wear out quickly with frequent use. |
| Equipped with a variable speed trigger and LED light, enhancing usability and visibility in dark or hard-to-reach areas. |  |
| Durable glass-filled nylon housing protects the tool in automotive environments. |  |
| Hog ring anvil simplifies socket changes, speeding up workflow. |  |
| Compatible with other Craftsman V20 batteries, providing flexibility and backup power sources. |  |
| Strong enough to replace weak spare tire tools and trusted for DIY roadside or home auto repairs. |  |

## Last Seen Prices

*Each price is the last one ShopSavvy observed, on 2024-12-05; it may have changed since.*

| Retailer | Price | Availability | Last seen |
|----------|-------|-------------|-----------|
| [Gardenshop](https://shopsavvy.com/api/redirect/products/qPBlUXOnQfEPFTTsrtaq/offers/13daece0-00b5-d7e1-c112-988bc5bb2200?source=shopsavvy&medium=article-review-tldr) | $102.38  | In Stock | 2024-12-05 (may have changed) |

[See every retailer and the full price history on ShopSavvy](https://shopsavvy.com/products/craftsman-v20-rp-impact-wrench-cmcf940m1)

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*About this review: it summarizes the professional reviews and customer ratings ShopSavvy collected for this product, alongside prices from ShopSavvy's price data (each price shows when it was last seen).*

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