WORX Nitro WX276L 20V Brushless 1/2-inch Impact Wrench: features and specs

The WORX Nitro WX276L is a cordless 1/2-inch impact wrench running on a 20V Power Share battery. WORX rates it at 1,400 ft-lbs of breakaway torque and 1,000 ft-lbs of fastening torque, in a body only 8.3 inches long. It is aimed at jobs such as wheel nuts, suspension bolts and general auto repair or construction work.

Breakaway and fastening torque

Breakaway torque is the peak force available to loosen a stuck nut or bolt, and fastening torque is the maximum it can apply when tightening. Both are maximum figures from the brand, and the torque you actually get depends on the fastener, the socket, the battery charge and the mode. An impact wrench delivers torque in short rotational hammering blows rather than a steady twist, which is why it can free a rusted fastener that would stall a normal drill.

For anything with a specified tightening torque, such as wheel nuts, use a torque wrench for the final tightening, as the vehicle manual describes.

Brushless motor

The motor is brushless. WORX says it runs 50% longer, delivers 25% more power and lasts 10 times longer than standard brushed motors. Brushless motors typically waste less energy as heat and have no carbon brushes to wear out, which is why they have become common in better cordless tools.

Consistent torque

The Intelligent Torque Control System is designed to hold torque steady under heavy load. WORX says the tool does not lose torque as the battery runs lower. The listing also describes a patented non-contact control switch, which it contrasts with contact switches that wear down under vibration.

Four-mode control

There are three speed settings plus Auto Mode. In forward rotation, Auto Mode is meant to stop the tool to prevent overtightening. In reverse, it stops once a bolt is loose so that it doesn't spin off and get lost. This is handy when removing a bolt from somewhere hard to reach.

Battery and Power Share platform

The kit includes a 20V, 5.0Ah Power Share PRO battery and a 2A quick charger. WORX says the battery stays cool and resists damage, and that the same battery fits more than 140 tools, outdoor power equipment and lifestyle products in the Power Share range. If you already own WORX 20V tools, you may be able to share batteries. Check the listing for the exact model, as the tool is also sold in different battery configurations.

Size and handling

At 8.3 inches long and 7.3 lb, the wrench is compact enough for engine bays and other tight spaces. A built-in LED light helps in dark corners, and the rubberized soft-grip handle is meant to improve control. A carry bag is included.

Who it suits

It suits home mechanics, DIYers and tradespeople who want a cordless 1/2-inch impact wrench without an air compressor or mains cable. It is not intended for the heaviest industrial fasteners.

What to check before you buy

• Torque needs: compare the rated torque with the fasteners you face, such as large axle or suspension nuts.
• Socket type: use impact-rated sockets, not standard chrome ones.
• Battery platform: check if you already have compatible Power Share batteries.
• What's included: confirm that the version you are buying includes the battery and charger.
• Charging time: a 5.0Ah battery on a 2A charger takes a while, so a spare battery may help on long jobs.
• Safety: wear eye protection, secure the workpiece and follow the manual.

The short version

• A compact 20V brushless 1/2-inch cordless impact wrench, 8.3 inches long.
• Rated at 1,400 ft-lbs breakaway and 1,000 ft-lbs fastening torque.
• Three speeds plus Auto Mode to avoid over-tightening or dropped bolts.
• Includes a 5.0Ah Power Share PRO battery, 2A charger and carry bag.
• Battery fits 140+ tools in the Power Share range, per WORX.

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