520Nm 1/2" Cordless Electric Impact Wrench Drill Gun Ratchet Driver with Battery

Square propeller: 12.7 mm (1/2"). 1 x Impact Wrench. -Tungsten steel shaft, high hardness and wear resistance. Speed: 2 forward speeds, 2 reverse speeds. Impact frequency: 0-3800 ipm. High resistance screw: M10-M16(3/8-5/8").

eBay