Search  for anything...

FLEX 24V Brushless Cordless 1/2-Inch 750 Ft-Lbs Mid-Torque Impact Wrench Kit with 3.5Ah Stacked Lithium Battery and 160W Fast Charger - FX1451-1F, Grey/Black

  • Based on 55 reviews
Condition: New
Checking for product changes
$299.00 Why this price?

Buy Now, Pay Later


As low as $49.83 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Saturday, Jan 25
Order within 23 hours and 37 minutes
Available payment plans shown during checkout

Size: 750 Ft-Lbs


Style: w/3.5Ah Stacked Lithium Battery


Features

  • THE FLEX STACKED LITHIUM ADVANTAGE - 200% more power with 24V Stacked Lithium, 300% longer runtime with THERMA-TECH+ heat management, 100% faster charging, 100% cross-compatible with all FLEX 24V tools and chargers
  • CORDLESS IMPACT WRENCH KIT - Includes a cordless mid-torque impact wrench, 3.5Ah Stacked Lithium battery, and 160W Fast Charger
  • HIGH POWER - 750 foot-pounds of nut-busting torque
  • VIBRATION SUPPRESSION - Isolates tool and user from vibration
  • TWO AUTO CONTROL MODES - Bolt Auto Stop Mode prevents over-tightening, breaking, or stripping; Bolt Removal Mode stops the tool when the bolt is loosened
  • THREE SPEED MODES - More control while fastening bolts
  • SENSOR-FREE BRUSHLESS MOTOR - Every FLEX 24V tool is built around an intelligent sensor-free brushless motor designed to eliminate friction and optimized for higher efficiency and power
  • FLEX 24V CROSS-COMPATIBILITY - Compatible with all FLEX 24V batteries, chargers, and tools
  • FLEX LIMITED LIFETIME WARRANTY - Register your new FLEX tool, battery, or charger within 30 days of purchase through December 31, 2024 to receive a limited lifetime warranty

Description

The FLEX 1/2” Mid-Torque Impact Wrench packs big power into a compact design for a lightweight, durable tool built to conquer hard-to-reach spaces. It delivers 600 foot-pounds of fastening torque and 750 foot-pounds of nut- busting torque for demanding jobs. When used for automotive applications, Bolt Auto Stop Mode prevents over-tightening, breaking, or stripping of lug nuts while Bolt Removal Mode stops the tool when it senses the lug nut is loosened. Vibration suppression isolates the ½-inch impact wrench and user from vibration for more comfortable extended use, and three speed modes plus a variable speed trigger allow easy control of RPMs to adapt to different materials. This cordless impact wrench dominates with the FLEX Stacked Lithium Advantage: unmatched battery power, runtime, and charging capability. The cordless impact wrench set includes the mid-torque impact wrench, a 3.5Ah Stacked Lithium battery, and 160W Fast Charger. It’s all protected by the FLEX Limited Lifetime Warranty when registered within 30 days of purchase atthrough December 31, 2024.

Color: Grey/Black


Brand: FLEX


Material: High Carbon Steel


Item Length: 7 Inches


Item Weight: 4.23 Pounds


Color: ‎Grey/Black


Brand: ‎FLEX


Material: ‎High Carbon Steel


Item Length: ‎7 Inches


Item Weight: ‎4.23 Pounds


Item Package Quantity: ‎1


Head Style: ‎Square Drive


Finish Type: ‎Brushed


Item Torque: ‎750 Foot Pounds


Operation Mode: ‎Battery


Voltage: ‎24 Volts


Manufacturer: ‎FLEX


UPC: ‎195532300077


Part Number: ‎FX1451-1F


Item Weight: ‎4.23 pounds


Country of Origin: ‎China


Item model number: ‎FX1451-1F


Batteries: ‎1 Lithium Ion batteries required. (included)


Size: ‎750 Ft-Lbs


Style: ‎w/3.5Ah Stacked Lithium Battery


Finish: ‎Brushed


Power Source: ‎Battery Powered


Included Components: ‎Battery and Charger


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Lithium Ion


Date First Available: January 25, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jan 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Milwaukee look out
Size: 750 Ft-Lbs Style: w/5.0Ah Lithium Battery
Very well built, fast charge, a ton of torque, battery lasts, reasonably priced!
Reviewed in the United States on December 17, 2024 by J

  • Worth every penny!
Size: 1,150 Ft-Lbs Style: w/5.0Ah Lithium Battery
I got this on sale for $199. Definitely a great value for the power! Battery charges fast, Impact itself is powerful and durable. Packing and color scheme is sleek. Will definitely continue to purchase Flex tools
Reviewed in the United States on October 17, 2024 by Michael

  • Actually Pretty Nice!!!
Size: 1,150 Ft-Lbs Style: w/5.0Ah Lithium Battery
For the price it's actually pretty good. The torque is amazing and exactly what I need it for. The weight of it is heavier than your standard impact so keep that in mind. The battery last quite awhile and it charges super fast. THE HEAD OF THE IMPACT IS SUPPOSED TO ROCK BACK AND FORTH!!. I see a lot of reviews about the head of this impact rocking back and forth but it is made that way, it's the "anti kickback" feature it has. Very impressed with this impact and I highly recommend! ... show more
Reviewed in the United States on October 7, 2024 by Cole

  • DIY Auto Guy
Size: 750 Ft-Lbs Style: w/5.0Ah Lithium Battery
High quality and awesome power. This thing makes easy work of rusty old bolts. Great value!
Reviewed in the United States on January 19, 2025 by Amazon Customer

  • Very powerful
Size: 750 Ft-Lbs Style: w/5.0Ah Lithium Battery
Is for heavy jobs very powerful The battery last very comfortable
Reviewed in the United States on August 8, 2024 by Ricky

  • Tough to beat for the money.
Size: 1,150 Ft-Lbs Style: w/5.0Ah Lithium Battery
It's good, not great. It's heavy so if you like curling while working in your shop, this is your tool. It's smooth, the charger and battery are very nice. The gun is easy on your wrists but not your forearm. Break away is on par with Snap-On. I tested it. Milwaukee will run laps around both of them.
Reviewed in the United States on December 12, 2024 by Slayerf150

  • heavy duty and battery indicator super easy to see
Size: 1,150 Ft-Lbs Style: w/5.0Ah Lithium Battery
Just used it a few times so far, but battery still has all 4 bars (charged it once i got it). Tool feels like it has plenty of torque and the battery indicator is a super bright green that's easy to see even in the brightest daylight. Only drawback would be if you aren't used to really heavy impacts this one is up there with Milwaukee but all high torque impacts that are decent will be heavy. ... show more
Reviewed in the United States on August 11, 2024 by Dan Allen

  • Five stars for now
Size: 1,600 Ft-Lbs Style: 3/8-Inch/5.0Ah Lithium Battery
Best thing I like about Flex is that any time I call, I can talk to someone who is an English native speaker. Please keep this type of customer service and do not outsource to foreign countries. Excited to put my first impact through its paces.
Reviewed in the United States on October 27, 2024 by Amazon Customer

Can't find a product?

Find it on Amazon first, then paste the link below.