This impact wrench has multiple gears. You don't need to bother with a cord, since it runs on a rechargeable battery.
From Amazon
Makita TW004GD201 40V Max Li-ion XGT Brushless Impact Wrench Complete with 2 x 2.5 Ah Batteries and Charger Supplied in a Makpac Case
HSS Toolshop
Makita TW004GZ 40Vmax XGT 1/2" Impact Wrench (Body Only)
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