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Worx Nitro 20V Brushless High Torque 1/2" Impact Wrench

3 Year Warranty
30 Day Guarantee
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  • Proven Power—Worx NITRO™ tools are built for pro-level performance to elevate power, speed, and productivity on every task.
  • High-torque levels loosen or remove the most stubborn nuts and bolts with ease. Whether used for auto projects or construction work, this impact wrench achieves up to 1400 ft/lbs of breakaway torque and 1000 ft/lbs of fastening torque to power through tasks with effective results. 
  • The Intelligent Constant Torque System maintains consistent high-performance levels, so you never have to worry about losing torque when battery levels get low or during long periods of use. 
  • High-efficiency brushless motor runs 50% longer, delivers 25% more power, and has a 10X longer life than brushed motors.  
  • Do more, recharge less. The included Power Share PRO 5.0Ah battery is designed to stay cool, resist damage, and optimize power control to boost equipment runtime.
  • Trigger features a patented non-contact control switch which stands tough against excess vibration and friction, unlike contact switches that wear down over time.
  • Power through high-intensity jobs without wearing down the tool. With a special high-strength impact transmission, this impact wrench lasts much longer than competing products. 
  • With 4 Mode Control, switch between 3 Speed Settings + Auto Mode to get the perfect pace for different projects. Auto Mode maintains precise speed control and stops immediately once the bolt is loosened or fastened. In forward rotation, Auto Mode helps prevent overtightening. In reverse rotation, Auto Mode helps prevent bolts from falling off and getting lost when working overhead. 
  • At only 8.3" long, this impact wrench is competitively compact, making it easy to maneuver in tight spaces.
  • Built-in LED light improves visibility in low-light environments—such as under car hoods.
  • Rubberized soft grip boosts user comfort and control, even on long and demanding jobs.
  • Same Battery, Expandable Power. The same battery powers over 140+ 20V, 40V, and 80V lifestyle, garden, and power tools in the Power Share™ family.
(1) - Voltage
20V MAX​
(1) - Capacity
(1) 5.0ah PRO Battery
(1) - Anvil Size/Type​
1/2” Friction Fit ​
(1) - Motor Type
(1) - No Load Speed
(1) - Impact Rate
0-2000 IPM (impacts per min)
(1) - Modes (keypad)​
3 speeds + auto mode​
(1) - Max Fastening Torque (forward)
1000 FT/LBS
(1) - Max Nut-Busting Torque (reverse) 
1400 FT/LBS
(1) - Weight 
7.28 LBS bare​8.83 LBS w/5ah battery​
(1) – Impact Wrench
(1) – 5AH POWERSHARE PRO battery WA3675
(1) – Carry Bag ​​

The Intelligent Constant Torque System guarantees reliable, high-performance operation throughout your tasks. Even during prolonged use or low battery levels, it maintains consistent torque. 

This impact wrench features 3 speed settings plus Auto Mode. In Auto Mode, rotation will automatically stop once a bolt is fastened or loosened. This helps prevent overtightening and stripping, as well as improves control over the fastener. 

California Proposition 65 Warning 

Warning: This product can expose you to chemicals including lead and Di(2-ethylhexyl)phthalate (DEHP) which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

ADVERTENCIA: Este producto puede exponerle a químicos incluyendo lead and Di(2-ethylhexyl)phthalate (DEHP), que son conocidos por el Estado de California como causantes de cáncer y defectos de nacimiento u otros daños reproductivos. Para mayor información, visite

AVERTISSEMENT: Ce produit peut vous exposer à des agents chimiques, y compris lead and Di(2-ethylhexyl)phthalate (DEHP), identifiés par l'État de Californie comme pouvant causer le cancer et des malformations congénitales ou autres effets nocifs sur la reproduction.  Pour de plus amples informations, prière de consulter

orange, black and white logo for Worx NITRO toolsorange, black and white logo for Worx NITRO tools

Proven Power

The power and advanced technology to expertly handle any level project with Worx NITRO cordless tools and accessories. Do more, finish faster and deliver real results with every charge.

Worx Nitro 20V High Torque 1/2" Cordless Impact Wrench

Loosen & Fasten with Force 

Top-Tier Torque

Work faster and get reliable results without the effort. This cordless impact wrench achieves a max breakaway torque of 1400 ft/lbs and max fastening torque of 1000 ft/lbs to handle the most difficult nuts and bolts.

Reliable Performance

The Intelligent Constant Torque Systems keeps performance consistent, so you don't have to worry about losing torque during extended use or when the battery gets low. Strength seems a bit off from my perspective, maybe use "power" or "torque"?

More Power, More Runtime

Do more, recharge less. This impact wrench is built with a high-efficiency brushless motor that achieves 25% more power, a 50% longer runtime, and a 10X longer life than standard brushed motors. 25% more power, 50% longer runtime, and 10X longer life than standard brushed motors.

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Advanced Enginnering

Efficiency and advanced engineering powered by cutting-edge research and innovation produces professional grade cordless tools.

brushless motor iconbrushless motor icon

Brushless Motor

Brushless motors are also lighter and more compact than traditional motors, making Worx NITRO™ tools lighter and easier to operate even in the toughest conditions.

power share 20v pro batterypower share 20v pro battery

Compatible with Power Share™ Pro

Power Share™ PRO is a next level Lithium-Ion battery that offers upgrades like greater amp hours for extended run times, heat and impact protection, and longer lifespan so you can do more on every charge.

orange, black and white logo for Worx NITRO toolsorange, black and white logo for Worx NITRO tools

Proven Power

The power and technology to do more, finish faster and deliver real results with every charge.