Milwaukee One-Key review Power Tool Technology

Using Milwaukee One-Key Hands-on Review

If you want to see how well the Milwaukee 2706-20 hammer drill and the Milwaukee 2757-20 impact driver performed in terms of speed and torque, check out our best heavy duty 18V cordless drill shootout and best 18V impact driver roundup reviews. Milwaukee’s One-Key models are identical in performance to the hammer drill and impact driver we tested in those shootouts—they simply lack the Bluetooth-based One-Key features and software. We’ve also already covered the low-down on the features and specs of the Milwaukee One-Key technology, but this Milwaukee One-Key review focuses on actually using Milwaukee On-Key software hands-on with detailed use and implementation of the app and software. We’ll also go over as much of the detail and use of it as possible in this Milwaukee One-Key review.

7/22/2019 Update: Milwaukee One-Key now has an updated Inventory system and a new Places tab.

Setting Up and Using Milwaukee One-Key

Before we get too far in this Milwaukee One-Key review you have to first download the app and set up an account if you want to follow along. Using Milwaukee One-Key and setting it up isn’t painful. You just download the app, configure it with your name and email, and you can log into the app and begin connecting to your One-Key compatible tools.


We’re going to save the inventory capabilities of the app and desktop web software for a bit later in this Milwaukee One-Key review because I want to jump right into the most exciting feature for tool-addicts: Tool control.

One-Key app nearby devices connecting One-Key app tool main

Using Milwaukee One-Key for Tool Control

With Milwaukee One-Key tool control you can custom tune the digital controls of your hammer drills, impact drivers, and more to get them to perform exactly as you’d like. You can connect to your One-Key tools in either of two ways. Once the Milwaukee One-Key app is launched, you can click the Inventory button to show all tools in your inventory.

One-Key app inventory select

All One-Key-equipped tools located within 100 ft. of your smartphone app will show a blue WiFi icon next to the name of the tool.

All One-Key-equipped tools within a 100 ft. radius of your smartphone app will have a blue WiFi icon next to the name of the tool. Click the tool to connect to it. If you have a large arsenal of tools, the search feature will help you narrow down the list. The second way to connect is to hit the Nearby Devices button (see further above). This will scan the area and list only devices within a 100 feet area that you can connect to. As with the other method, you simply click on the tool to connect to it. This second method is actually quicker if you want to get directly to the Tool Controls area of the app.

Testing Speed Settings

To understand how we could configure custom speed settings, we set a “PTR Eclectic” mode for our Milwaukee 2706-20 hammer drill, giving Mode 1 a maximum speed of 1000 RPMs in High (2) gear. With our Extech RPM33 laser tachometer we measured about 1006 RPMs which is definitely within the margin of error for our testing and more or less spot on (that variance is 1/2 of 1 percent for anyone interested). In Low (1) gear, which we set to 350 RPMs, the Milwaukee 2706-20 One-Key hammer drill measured 351—about the same accuracy if you estimate the differential to increase with the speed. In these modes the difference between what I configured to what I measured was truly negligible. Testing the Milwaukee 2757-20 impact driver in the highest speed yielded a slightly different result, with our measured RPMs coming in at 2865 instead of the expected 3000 RPMs at maximum speed (about a 4% difference). Still, setting speed with the One-Key system is something you can do with a reasonable level of confidence.

Storing One-Key Settings

When you store a setting in one of the four available slots, the system lets you know by giving you an onscreen verification, but the tool also blinks the WiFi indicator and the number you’re saving to, followed by two more flashes to let you know it’s ready for whatever’s next.

Milwaukee One-Key WiFi button

See that Blue Wireless icon? It lets you know the One-Key tool is connected to—and talking to—the app. When you connect, the LED light and the Wireless icon flash to let you know you’ve got the right tool (You don’t want to program another tool in your shop accidentally, right?).

Configuring Your Drill to Mix Thinset

One of the things I was eager to do in this Milwaukee One-Key review was see if I could mimic (or even best) the settings offered by the Hilti SF 10W-A18 4-speed drill. We were impressed that you could finally have a high torque, low speed mode for mixing mud, paint, and—of course—thinset…because these drills are finally getting to the point where they have enough torque and electronic motor protection to pull it off without damaging the tool. For all of these applications you need Low speed, but can you also get the torque needed to make it work? This is where One-Key gets really advanced. Milwaukee understands that there are different aspects of using a hammer drill, and they set up their software to customize each. With One-Key, you can set any of the four quick-mode buttons for Custom Drill Control, Custom Drive Control, or Hole Saw. Here’s how those setting options look and how they differ from each other:

Custom Drive Control

With the Custom Drive Control you can set either a clutch torque range or a fixed clutch torque for the tool. This lets you adjust what the 1-13 clutch settings actually mean for this particular drive mode. That range can be very wide or very narrow, or you can bypass it entirely. Maximum speed can also be configured in Low and High gear, giving you even more practical control over the tool in driving applications. Under the More Options section you can configure the trigger ramp up duration (the duration of the tool’s soft start trigger control), LED duration (how long the LED stays on when you tap the trigger), and the LED brightness. The LED light duration can be set from 0-30 seconds, and you can even set it so that it’s always on, effectively turning your drill into a mini flashlight should the need arise.

One-Key app custom drive control

Custom Drill Control

On the Milwaukee 2706-20 hammer drill, the Custom Drill Control preset enables High and Low speed range settings with Kickback control (and no clutch). Milwaukee One-Key Kickback Control seems to monitor current draw to the motor (as torque) as opposed to using a multi-axis chip to sense whether the tool has actually rotated too far too fast. You set the torque shutoff level (anywhere from Low (1) to High (10) with High being the most torque before the tool shuts down. The More Options settings are identical to the ones in Custom Drive Control, and you can configure both the trigger ramp up duration and LED duration and brightness.

One-Key app custom drill control


Hole Saw

In the Hole Saw preset area you get to select both the size of the hole saw and the material to be drilled. This preconfigures what Milwaukee considers a good starting point for both speed and torque settings. For now, the system presumes a bi-metal hole saw is being used, but we may see more options there in the future for newer carbide tooth and diamond abrasive models. Once you set the hole saw, you can further adjust High and Low speed range settings with Kickback control that gives you a torque shutoff level. The More Options settings are identical to the prior two preset modes described.

One-Key app hole saw speed warning

When you select the Hole Saw preset in the app, One-Key reminds you that you’re going to want to be in Low gear to make it work properly.

To set up a custom “Mixing” mode in memory slot 4 that would turn my Milwaukee 2706-20 M18 Fuel One-Key hammer drill into the consummate cordless thinset mixer, I set the Low speed (1) gear to max out at 100 RPMs (the slowest it would go) but allowed the tool to use its maximum amount of torque at that speed. But that’s not all. I also configured the same preset so that High speed (2) gave me 2000 RPMs with the same full torque (Level 100). Now I had a truly dynamic Preset that would work for high torque applications in both Low and High speeds. Once I was done, I stored my Button 4 setting as “Mixing” and proceeded to testing.

One-Key app custom drive control mixing One-Key app custom drive control mixing High

We already know how well the Milwaukee Fuel hammer drill works in High speed full torque mode, so I limited my testing to my new Low speed high torque setting. Grabbing some thinset and water, I mixed up a quick batch for a small tile project I had planned for our bathroom. I mixed way more thinset than I needed, but I wanted to really get a feel for how the drill would perform. There’s definitely a practical and mathematical relationship between speed and torque, and if you need more power, you’re going to have to increase your rotational speed. Finding the balance is the key. I found that somewhere between 100 RPMs and 200 RPMs was the sweet spot for my typical applications, and I was able to get enough torque to get the job done. If you’re doing a lot of thinset mixing, a corded drill with a large motor and slow RPM is still a pretty good purchase to avoid making a mess.

Configuring Your Impact Driver for Self-Tapping Screws

In the example above, where we were using the Milwaukee 2706-20 hammer drill, you’ll note that Milwaukee doesn’t include settings for various fasteners, self-tapping screws, or other driving applications. That’s because they know that those settings are best included with the Milwaukee 2757-20 impact driver.

On the Milwaukee 2757-20 impact driver, you get some additional configuration options in the One-Key tool controls that automatically set ramp-up speed, maximum speed, and finishing speed (the slow-down at the end). Milwaukee does this by letting you choose from concrete anchors (Tapcons or similar) or self-tapping screws (for sheet metal). For the anchors, you can choose the anchor diameter, length, and material you’ll be driving it into. For the self-tapping screws, you select the steel gauge, screw length, diameter, and head. It was interesting to see the instantaneous changes made just based on the head—you’ll note a much slower finishing speed on a slotted head as opposed to a hex head, for example.

impact drive control concrete anchor impact drive control self tapping screw

It’s clear that a lot of research went into these calculations, but even if they don’t work perfectly for your application (or you don’t see your exact application here just yet), you can certainly get close. From there it’s just making the adjustments to speed up your workflow. Anyone driving screws into sheet rock, backer board, sheet metal, or fastening large split rings will appreciate the options here.

Milwaukee One-Key Inventory System

With Milwaukee One-Key you can not only add Red tools to your inventory, but also tools from other manufacturers, making this a decent system for tracking what you have as well as which tools are in the tool crib, on a job site, in need of repair, or even missing. Each tool can be tagged with model and serial numbers, category, location, trade, and person, so you can use the system for insurance claims as well as understanding where your tools are—and with whom.

One-Key desktop inventory tool info

For now, the process of adding new tools is best done by importing an Excel spreadsheet of your existing inventory. For new users of tool tracking software, you’ll ultimately need to set up your tool crib initially and then keep it up to date as you continue to purchase new tools. Milwaukee’s import feature is great for those moving from another platform to this one—particularly if you were doing it by hand before. Using this software as a general inventory management system is going to appeal to smaller businesses who want to take advantage of all of the features One-Key offers without having to pay for some of the more sophisticated software available on the market. It also does a great job of managing your warranty materials and receipts so that when a tool breaks you’ve already scanned that in or attached it and don’t have to hunt around for any documentation.

Once your tools are in the system, Milwaukee makes it very easy to sort, assign, and categorize everything as well as update any pertinent information on the tool’s status or whereabouts.

Milwaukee One-Key Bluetooth Tool Tracking

In this Milwaukee One-Key review, tool tracking was a big part of our focus. With this system, you can identify One-Key tools from up to 100 ft away using the app. You can also view the last known location of any One-Key tool, and (if you misplace or lose the tool) you can initiate an alert to notify you when the tool comes within 100 feet of anyone using the app (opt-in required for the app to use location services on the phone). Think of it as a “mesh” platform for tool tracking. Since the tools themselves have embedded Bluetooth chips (and not just the batteries), you can track the tool whether or not it has a battery installed.

One-Key app inventory report missing tool

From the app you can indicate that a tool is missing, setting off an alert whereby—if it’s within 100′ of anyone using the Milwaukee One-Key app—your team will be notified, and you can track it down. This may be the last time you leave that circular saw on a roof!

But tracking is more than locating a tool via Bluetooth (though that’s pretty cool). Tool tracking is knowing where a tool is, who it’s with, and why. For that, Milwaukee gives you the ability to manage your inventory and assign tools from one jobsite, person, or trade to another. You can do all of this most easily from the Inventory screen of the desktop app. Simply filter your list; select the relevant tools; and then edit the Category, Location, Person, Trade, Image, or Status by clicking the corresponding blue button at the top of the screen. As far as knowing where your tools are (so you can reallocate them), Milwaukee helps you there as well. Anyone running either the desktop application or the app can check on the whereabouts of a tool. This lets you not only track down missing tools, but also re-allocate resources based on the tool location. You can identify tools that aren’t being used on a nearby jobsite and and send them to another location that needs them. Many companies purchase too much redundant inventory when better tool management will solve the problem.

Milwaukee tool inventory management

Milwaukee One-Key App vs Desktop

When people consider the One-Key platform, you should know that it’s best utilized by both the desktop browser and the smartphone app. The desktop web browser software gives you a global view of what’s going on in your company. All of the tools can be located, assigned, and managed across all job sites as well as your tool crib(s). I consider the app the “jobsite” part of the equation. On the jobsite you want to use the app—and indeed it does just about anything you would want it to do for you while you work.



As of this writing, more and more Milwaukee tools are being added to One-Key, and we won’t be surprised if the majority of the M18 lineup makes it there eventually. The software is easy to use, flexible, handles imports from your existing tool spreadsheets, and—best of all—it’s free. You will, obviously, greatly benefit from using One-Key enabled tools as they will give you additional tool tracking capabilities, and adding new tools to your inventory is much quicker.

About the only room for improvement I’d like to see with these tools is the ability to add low-cost GPS chips into the tools. This would allow you to have two stage tracking of all tools. One using the Bluetooth capabilities for locating missing tools on the jobsite, and another that would kick in when the battery was inserted and the tool could call out its specific location via GPS (similar to how laptop tracking software works when it gets powered up after it’s reported stolen). This would all but eliminate jobsite power tool theft—at least of Milwaukee power tools. As it stands now, once that One-Key tool leaves the proximity of the smartphone app, its untraceable.

We’d also love to see Milwaukee implement some sort of One-Key RFID and barcode system that could be used for non-Milwaukee tools. This would allow for tool crib managers to more quickly check in and check out batches of tools at one time. Imagine scanning an entire box, truck, or van full of tools simply by waving an RFID scanner around it for a few seconds and capturing everything all at once—or checking out a single tool via barcode (for tools that aren’t One-Key models. Tool tracking would be revolutionized. Still, these are just ideas for the future, and it’s likely Milwaukee is already considering its next steps for One-Key and how it can address the growing needs of professional consumers. We’ll be heading up to their headquarters this summer, so it’s likely we’re only a couple months away from seeing what’s next.

Notify of
Oldest Most Voted
Inline Feedbacks
View all comments
Rob Gibson

It bothers me more than it should that they use a WiFi icon on the tool when it should be a Bluetooth icon.

Andrew Kelch

Why does the one- key app drain so much power on my phone


hey clint,

how easy is it for a contractor to use this (the tracking)?

i mean the data can be right but it doesn’t have to be, as everything depends 1. on the construction worker to scan the tools properly and 2. on the stockman to manage the system carefully.

wouldn’t it be better if there were a chip in the tool itself (like GPS) and you could just press on a button and know where everything is at the moment?


Anyone knows if it’s easy to hack or if they provide an API to write your own apps for more customizable?