M18 FUEL™ ONE-KEY™ ½″ high torque impact wrench with pin detent



The M18 FUEL™ high torque impact wrench with ONE-KEY™ technology delivers 1017 Nm of fastening torque in a compact size of 206 mm, which gives more access in tight spaces

The 4 -Mode DRIVE CONTROL allows the user to shift into four different speed and torque settings to maximise application versatility

Mode 4 bolt removal, provides a maximum nut-busting torque of 1491 Nm then shifts to 750 rpm for outstanding control when removing fasteners

The integrated blow counting sensor enhances the consistent repeatability of the chosen torque setting

ONE-KEY™ tool tracking & security offers a free of charge cloud-based tracking network and inventory management platform for your tools. ONE-KEY™ also features a remote locking functionality. Customisation function allows for precise tool adjustment to application

The DNA of our FUEL™ platform redefines the balance of cordless technologies. MILWAUKEE®'s POWERSTATE™ brushless motor, REDLITHIUM™ battery pack and REDLINK PLUS™ electronic intelligence delivering  outstanding power, run time and durability

½″ pin detent for maximum socket retention

Flexible battery system: works with all MILWAUKEE® M18™ batteries

Select Model Variant


  • M18 ONEFHIWP12-502X
  • M18 ONEFHIWP12-0X

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Product Specifications M18 ONEFHIWP12-502X
Article Number 49334597254933459724
Battery pack capacity (Ah) 5.0No batteries supplied
Battery type Li-ionLi-ion
Impact rate (ipm) 0-1150/0-2100/0-2400/0-24000-1150/0-2100/0-2400/0-2400
Kit included 2 x M18 B5 Battery packs, M12-18 FC Charger, HD Box
Max. bolt diameter M24M24
Max. torque (Nm) 190/400/1017/1017190/400/1017/1017
No load speed (rpm) 0-950/0-1500/0-1800/0-18000-950/0-1500/0-1800/0-1800
No. of batteries supplied 20
Nut-busting torque (Nm) 14911491
Supplied in HD BoxHD Box
Tool reception ½″ square½″ square
Vibration impact tightening of fasteners of the maximum capacity of the tool [m|s²] 18.4
Vibration impact tightening of fasteners of the maximum capacity of the tool uncertainty [m|s²] 1.5
Voltage (V) 1818
Weight with battery pack (EPTA) (kg) 3.2 (M18 B5)3.2 (M18 B5)
Sound power level measured (dB(A)) 105.7
Sound power level measured uncertainty (dB(A)) 3
Sound pressure level (Lpa)(dB(A)) 94.7
Sound pressure level uncertainty (dB(A)) 3
Manuals & Spare Parts View View
Product Data A4 DownloadDownload
Product Data A4 - Landscape DownloadDownload
Product Data A5 DownloadDownload
Fact Tag 14.9 x 6.9cm DownloadDownload
Fact Tag 15.5 x 8.5cm DownloadDownload

Ratings & Reviews

5/5 from 3 reviews