Tool Tutorial: M18 FUEL 1” D-Handle High Torque Impact Wrench

How to customize the cordless M18 FUEL™ 1" High Torque Impact Wrench using ONE-KEY™


You can finally pack up the compressors and hoses. As the world’s very first cordless—and most powerful—tool of its class, the Milwaukee® M18 FUEL™ 1" D-Handle High Torque Impact Wrench no longer needs them.

The D-Handle is revolutionary in at least one other respect: Thanks to its built-in compatibility with the One-Key digital asset tracking and smart tool management platform, this high torque impact wrench’s comprehensive range of settings can be rapidly adjusted in the field from your mobile device.


Get started on the One-Key mobile app

  • Login to the One-Key mobile app.
  • The homepage, or Inventory Dashboard, will display on your screen.
  • Make sure your D-Handle is on hand and added to your One-Key inventory.
  • Once you’ve added your impact wrench to inventory, you'll find and select it from your inventory or nearby devices.

Accessing Custom Drive Control

2,000 ft-lbs of nut-busting torque isn’t all the D-Handle brings to the table. This highly customizable piece of hardware comes with four modes of speed and power that allow you to safely and efficiently adjust to whatever the job throws your way.

  1. Max Speed: Use this to set your maximum forward and reverse speed.
  2. Bold Removal: Set the speed at which your D-Handle will slow down in reverse once the bolt has broken free.
  3. Precision Mode: Use this to limit torque output and achieve a repeatable torque.
    1. Lower the ‘Precision Mode’ slider for fewer impacts or increase it for more impacts before the tool automatically shuts off.
    2. Changing both your D-Handle’s “Max Speed’ and ‘Precision Mode’ level will change the torque output of your tool. You can then test with a torque wrench to find your desired torque range.
  4. Trigger Ramp Up: Set the amount of time it takes for your D-Handle to reach its maximum RPM. This makes for longer or shorter ramp up times.
    1. Once you’ve dialed in your preferred settings, make sure to save them to the physical mode on the tool.
    2. To learn how to save smart tool modes to the cloud, check out our Mode Library support article.

Now that your D-Handle is customized to your specifications, you’re ready to put it to work.


Taking advantage of the highly customizable settings of the M18 FUEL™ 1" D-Handle High Torque Impact Wrench through One-Key is the best way to assure that the most powerful cordless impact wrench in the world performs precisely how you want it to every time.