This Hilti cordless impact wrench (sometimes called an impact gun, rattle gun, power wrench or nut runner) is a high-torque power tool used to rapidly tighten or loosen stubborn bolts, heavy-duty fasteners, and lug nuts with minimal effort. It offers:
Anvil type: 1/2" detent pin
Maximum torque: 450 Nm (1)
Full hammering frequency: 2500 impacts/minute
 
As it's cordless, this impact wrench is easily portable and great for tasks including:
Construction & Structural Steel: securing heavy-duty fasteners in metal construction and wood projects, such as bolting steel frames or installing large lag screws
Industrial Product Assembly: use on production lines where high-torque, repetitive fastening is required
Removing Stuck Fasteners: freeing fasteners that are seized, rusted, or stubborn
Heavy Equipment & Machinery Maintenance: removing rusted or stuck bolts in heavy machinery maintenance
Automotive Repair: removing and tightening lug nuts on vehicles, as well as working on suspension components, brakes, and engine bolts
 
Note: Impact wrenches differ from impact drivers in that they use square drives for sockets (for bolts/nuts), whereas impact drivers typically use a 1/4-inch hex collet for screwdriver bits.