21V Lithium-Ion Cordless Impact Wrench - 360N.M High Torque Electric Spanner for Heavy-Duty Bolt Fastening

We're replacing the older pneumatic units for the steel crew, and for what they need—tightening structrual bolts on bridge sections—the 360 N.M. torque is more than adequate, it's actually pretty much overkill for half the jobs they'll do, but we'd rather have the headroom. The no-load speed hits 2800 rpm, and the impact rate matches at 2800 ipm, so it drives fasteners home quickly without that annoying lag you get with weaker tools, and the 1/2" square drive is standdard for our deep impact sockets.

Battery life is usually the pain point with cordless, but the 4.0Ah pack handles about 20 minutes of continuous use under load—give or take depending on bolt size—and we've found that's enough for a full morning of assembly work before swapping packs. And charging takes roughly 60 minutes, so we ordered three extra batteries (the 21V platform) to keep a rotation going; the MOQ was 5 packs but they let us buy 3 at single-unit price on the T070031 model, which I thought was a decent deal.

It's not ideal for precision work like tightening to a specific foot-pound value because there's no adjustable clutch—for that you'd need a torque wrench or a different tool entirely. What it does is handle high-volume bolt seating in steel structure installations or heavy machinery assembly where tolerances are more about "tight enough" than exact specs, and the overload protection kicks in if you really lean on it, which has saved a few driveshafts already on other jobs.

CE and RoHS compliance are baked in, which is non-negotiable for us anyway, but the EMC certification means it won't interfere with nearby sensitive electronics—important for the power plant maintenance work we've started quoting for. Operating temperature range sits between -10°C to 50°C, so it's fine for outdoor use in most climates, but storage below -20°C can damage the cells, so we're keeping them in the heated truck box during winter.

Weight is 2.8 kg for the tool only, basically 6.2 pounds, which is lighter than the old 240V wired wrench by about a kilo, and it moves much better on ladders and scaffolding unless you're tightening bolts you can't get a stabilizing grip on—then the extra heft of that corded unit actually helps keep the tool form kicking back. We usually have stock in the warhouse, but confirm lead time for the T070031 because if they're out, the factory ships in 30 days or so from China and that might push our schedule a bit.

Measurements are 220 x 190 x 65 mm—fits in the standard canvas tool bags we issue to each mechanic—and the in-box packaing includes the tool, one battery, a charger, and a blow-molded case, (though check the sealed plastic insert snug enough for overseas shipment). Anyway, all cleared for the production roll-out next Tuesday.