Milwaukee M18 ProPex Expansion Tool Review

Milwaukee M18 ProPEX Expansion Tool Review: Pros & Cons


• Easy to use. No complicated operation required. You just need to turn the handle clockwise until it stops moving, then you press down on the button to start the tool. The tool will automatically stop when you release the button or if there are no objects within its reach (like a screwdriver).

• Durable construction. Made from durable plastic material with metal parts.

• Compact size. Can easily fit into your pocket.

• Lightweight. Only 2 pounds! (1 kg)


• Expensive at $199.95 (around £130 or AU$270). Price may vary depending on location and retailer’s discount offer.

• Not suitable for children under 12 years old due to the sharp edge.

• The tool may not work properly if you do not have adequate hand strength.

• Does not come with a case or carrying bag.

Where to Buy?

You can buy the Milwaukee M18 ProPEX Expansion Tool from Amazon or eBay. The price on Amazon is $199.00 (as of 23 April 2018). You may also find it at other tool stores like Home Depot, Lowes and Ace Hardware.

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How it’s Different from Competitors

The Milwaukee M18 ProPEX is a unique expansion tool since it is able to hand up to 4-1/2 inches long objects. Other expansion tools can only expand as much as 3 inches. This may not sound like a big difference, but this enables the Milwaukee M18 ProPEX to open some containers that other expansion tools cannot do.

How Does it Work?

The expansion tool has a built-in pneumatic system that pushes the plastic shoe out by force. Just turn the handle clockwise until it stops moving and then release to press down on the button to start the tool. The shoe will automatically stop when it hits an object or when you let go of the button.

This expansion tool can be used in a wide range of applications including electronics, medicine, scientific research, food and beverage, and many more. It can also be used to open air conditioning vents, furnace ducts and security grills.

It only takes a few minutes before you can master the expansion tool. It is so easy that you can easily teach your kids or grandkids how to use it for their next project at school! The tool’s nozzle is made of metal but the rest of it is made of plastic, making it lightweight and easy to carry around.

What’s Included?

When you buy the Milwaukee M18 ProPEX, you will get the expansion tool, a belt holster, one short boot and one long boot. The kit does not come with a case or bag so you have to be very careful when storing it and carrying it around. The boots are made from thermoplastic polyurethane which can resist high temperatures up to 280°C (527°F).

The Pros and Cons of the Milwaukee M18 ProPEX

After looking at the different features and options of expansion tools, you can now weigh the advantages and disadvantages of each tool so you’ll know which one best suits your needs. You may decide to buy multiple expansion tools since each one is specialized for a particular task. The expansion tool can also be used with other Milwaukee M12 and M18 batteries.


• Can be used with other Milwaukee batteries.

• Unique design.

• Comes with a belt holster.

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• Not suitable for children.

• Price is quite steep at $199.00 (around £130 or AU$270).

The Milwaukee M12 and M18 are great tools for construction workers, remodelers, plumbers, automobile mechanics, electrical and electronics installers and more. They are very versatile and can perform a wide range of functions. The expansion tool can be used to open up security grills on store windows or doors so you can break in without damaging the frame.

You’ll be able to get into tight spots that cannot be reached by regular tools or even your hands. You’ll also be able to fix things in unreachable areas like under the kitchen sink or the back of your car engine. If you use this tool with other Milwaukee M12 or M18 products, then you can save a lot of time and effort.

You don’t have to worry about batteries since the expansion tool works on the same batteries as other tools in the M12 and M18 series. Having multiple batteries is important so you can always have a fully charged battery ready to go when the other one runs out of power.

How to Use the Milwaukee M12 and M18 Expansion Tool

Once you’ve bought your expansion tool, you can follow these instructions when using it for the first time:

1. Load the battery into the tool by lining it up with the positive and negative indicators.

2. Screw the battery cap on until it’s tight.

It should not be too loose or too tight.

3. Press the trigger to inflate the boot.

If a second boot is needed, press the overload button and repeat step 2.

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4. Place the boot over the object you wish to cover up, such as a wire or electrical socket.

5. Press the boot firmly around the object and slowly release pressure from the trigger to allow air to inflate the boot around the object.

The tighter the fit, the less likely it will pop off.

6. If the object you’re covering is hot, do not cover it with the plastic material.

The plastic melts at high temperatures so only cover low to medium heat areas.

7. Once the object is covered, release more air from the boot by pressing the overload button.

Continue pressing on the trigger and releasing the button until the desired fit is achieved.

8. Release the trigger and pull on the boot to test the fit.

If it slides off, add more air by pressing the overload button.

9. Continue steps 7 and 8 until the desired fit is achieved.

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10. Once the fit is right, leave the expansion tool turned on so it stays inflated. If you turn it off, it will lose its inflation.

11. When you’re ready to remove the boot, slowly release the trigger to allow air to escape. Do not pull on the boot since this may tear the plastic.

12. If another object needs to be covered, follow steps 4 through 11.

13. Once you are finished using the tool, turn it off and remove the battery for storage.

Remember: do not expose the plastic or boots to open flames. The plastic melts at very low temperatures so be careful not to allow sparks or fire near the material. The expansion tool is not a toy. Never put your hand inside the boot since it will constrict blood flow and may cause loss of a body part. Only use the expansion tool for objects that are smaller than the boot or you risk ripping the material.

Sources & references used in this article: