• Superior performance delivers up to 813Nm of maximum fastening torque and maximum impact rate of 2,300ipm.
  • 1/2" anvil with pin dent for maximum socket retention.
  • POWERSTATE™ brushless motor runs cooler with no wearable components.
  • REDLINK PLUS™ Intelligence allows the operator to choose between 2 fastening modes with Milwaukee's proprietary DRIVE CONTROL™ feature. Mode 1 delivers up to 474Nm maximum torque, mode 2 allows up to 813Nm maximum fastening torque.
  • REDLITHIUM-ION™ battery technology provides superior pack construction, electronics and performance.


Voltage: 18V
Motor type: POWERSTATE™
Anvil type: 1/2" Square - Pin Detent
Fastening Torque: 474Nm / 813Nm
Nut Busting Torque: 1,354Nm
Speed: 1,200 rpm / 1,700 rpm
Impact rate: 1,700 ipm / 2,300 ipm
Switch type: Variable Speed Trigger
Sound pressure level: 94.4 dB(A)
Sound power level: 105.4 dB(A)
Battery type: REDLITHIUM-ION™
Battery capacity: 5.0Ah
No. of Batteries: 2
Supplied in: FUEL™ Hard Case
Weight (tool only) 2.60 kg
Weight with 5.0Ah: 3.28 kg
Warranty: 5 years (tool)/2 years (battery)

M18CHIWP12 Product Brochure

Standard Equipment:

M18 CHIWP12 13mm (1/2") High Torque Impact Wrench w/ Pin Detent, (2) M18™ REDLITHIUM-ION™ 5.0Ah Extended Capacity Battery Packs, Dual Voltage Charger, Carry Case.