Seesii WH760 Cordless 1/2-Inch Impact Wrench Kit: torque, battery and specs

The Seesii WH760 is a cordless 1/2-inch impact wrench sold as a kit with two batteries, a charger, sockets and a case. It is aimed at jobs such as removing wheel nuts, automotive repairs and equipment maintenance. Here is what its main specs mean and what to check first.

What 1000 N.m of torque means

Torque is turning force. Seesii rates the WH760 at up to 1000 N.m (738 ft-lbs) of maximum breakaway torque, which is the force used to loosen a stuck fastener, with a top speed of 2400 rpm. Breakaway torque is typically higher than the torque available when tightening, and manufacturers usually measure it under test conditions, so treat it as a peak figure. For tightening wheel nuts, a torque wrench is normally used to finish to the vehicle's specified value.

Three speeds

A switch at the base of the tool gives three speed settings: 0-1400, 0-1800 and 0-2400 rpm. Seesii adds that pressing the trigger harder increases speed. Lower settings are generally suited to delicate work where you want to avoid damaging threads, and higher ones to stubborn bolts.

Brushless motor

The WH760 has a brushless motor. In general, brushless motors are more efficient than brushed ones, have no carbon brushes to wear, and tend to run cooler, which can mean longer runtime per charge. Seesii calls this its top-of-the-line model.

Batteries and charger

The kit includes two 4.0Ah batteries and a charger. Seesii says 4.0Ah has 30% more capacity than a typical 2.0Ah battery, and that the fast charger fills a battery in about three hours. Having two batteries means one can charge while the other is working. Runtime depends on the load and speed setting.

Size and light

The tool is 6.89 inches (about 17.5 cm) long and weighs 4.4 lb as a bare tool, according to the listing. Its short length helps in narrow or deep spaces, and a built-in LED lights the work area in dim conditions.

What's in the case

The kit includes the wrench, two batteries, a desktop charger, five CR-V steel sockets (17, 19, 21, 22 and 24 mm), a 5-inch extension bar, a belt hook and a carrying case. Seesii also states a 3-year warranty with replacement rather than repair.

Who it suits

It suits home mechanics and tradespeople who change tyres, work on cars, light trucks and RVs, or maintain machinery and want a cordless tool without an air compressor. Seesii also lists agricultural machinery and construction among its uses.

What to check before you buy

• Sockets: make sure the included sizes match your fasteners. Impact-rated sockets are generally recommended for impact tools.
• Torque needs: very large or seized fasteners may need a higher-rated tool, while delicate work calls for lower speeds.
• Weight and balance: check that a 4.4 lb bare tool plus battery feels right for overhead or long jobs.
• Charging time: with about three hours per battery, plan around that if you work all day.
• Tightening: use a torque wrench for wheel nuts and other critical fasteners and follow the vehicle manual.
• Safety: wear eye protection, support vehicles properly on stands, and read the manual.

The short version

• A 1/2-inch brushless cordless impact wrench, model WH760, from Seesii.
• Rated at up to 1000 N.m (738 ft-lbs) breakaway torque and 2400 rpm.
• Three speed settings and a built-in LED.
• Kit with two 4.0Ah batteries, a charger, five sockets, an extension and a case.
• 6.89 inches long; 4.4 lb as a bare tool.

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