Milwaukee M12 Multi-Tool 2426-20

A multi-tool is something I didn’t expect to buy, at least I’ve not thought of a use for it, until I saw one in action.

The way it handles plunge cuts into various materials is amazing, and one can already envision the many ways a multi-tool would make light of work which would otherwise become tedious, lengthy and difficult.

I was in the active process of collecting Milwaukee’s M12 series of 12V cordless power tools in mid-2014, and didn’t need much convincing to add the Milwaukee M12 Multi-Tool to my arsenal of existing appliances on the M12 system.

Despite not having used one before, I was convinced that a multi-tool is an essential sibling of the versatile rotary tool, the Milwaukee M12 Rotary Tool and the Black & Decker RTX-1 High-Speed Rotary Tool.

At A Glance

First impressions upon arrival of the Milwaukee M12 Multi-Tool 2426-20:

Milwaukee M12 Multi-Tool
The bare-tool version of the Milwaukee M12 Multi-Tool is delivered in a box, with accessories comprising of a plunge cut wood saw blade, sanding pad, sanding sheet of various grit levels, a universal adapter, and a hex key for blade change. The M12 battery in the photo above was from another M12 power tool and did not come with this set.
Milwaukee M12 Multi-Tool
Milwaukee, embossed on one side of the multi-tool…
Milwaukee M12 Multi-Tool
…and a label with catalogue number and serial number on the other side.
Milwaukee M12 Multi-Tool
Air vents appear on all sides of the multi-tool…
Milwaukee M12 Multi-Tool
…for adequate ventilation and heat dissipation during operation.
Milwaukee M12 Multi-Tool
Oh, let’s not forget the most important part – the spindle head!
Milwaukee M12 Multi-Tool
The M12 Multi-Tool takes any M12 REDLITHIUM battery – both standard and extended capacity.
Milwaukee M12 Multi-Tool
Like its other sibling the M12 Rotary Tool, the power switch is also found along the top side of the M12 Multi-Tool.
Milwaukee M12 Multi-Tool
Upon switching on, the fuel gauge located about the speed setting wheel turns on momentarily, indicating the remaining charge on the battery.
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I bought the Milwaukee M12 Multi-Tool bare-tool only version, as I already have a number of M12 lithium-ion batteries and charger from my M12 CPD-202C Hammer Drill Driver.

Milwaukee makes it easy to own many of their similar cordless power tools without needing to spend too much unnecessarily. I foresee that other manufacturers of power tools will take this path in due course, with some such as Bosch already starting with their 10.8 V power tools.

As indicated by the last two digits “20” in the model no. 2426-20, this Milwaukee M12 Multi-Tool set comes as a bare tool without any battery, but with a limited set of accessories, including a plunge cut wood saw blade and sanding pad with sanding sheets of various grit levels.

Any battery that you see in this article came from one of my other set of Milwaukee M12 power tool.

Using the Milwaukee M12 Multi-Tool

Multi-Tool
The Milwaukee M12 Multi-Tool comes with a limited set of tool attachments, and we’ll just be looking at these for now.
 cutting tool
Every operation with the multi-tool begins with the attachment of a tool blade. Use the included hex key to remove the accessory bolt.
Milwaukee power tools
With the accessory bolt removed, the outer flange is also disengaged from the spindle and inner flange.
Milwaukee M12 Multi-Tool
Let’s start off with the sanding pad. Note the multiple holes on the surface, which will serve as key-guides during attachment.
Milwaukee M12 Multi-Tool
Fit the top side of the sanding pad to the inner flange like so. Note the pins on the inner flange finding their way into the guide holes on the sanding pad. Seen above is the underside of the sanding pad.
Milwaukee M12 Multi-Tool
Reassemble the outer flange and tighten it in place with the accessory bolt using the hex key. Ensure that the fit is snug and the bolt is tightly screwed on.
Milwaukee M12 Multi-Tool
Take a sanding sheet of the desired grit and attach it against the underside of the sanding pad. It attached by velcro.
Milwaukee sanding pad
Here’s a photo of the sanding sheet properly attached to the sanding pad.
Milwaukee M12 Multi-Tool
Turning on the multi-tool, you’ll notice the very slight 3o oscillation, which appears more like a vibration than anything else to the naked eye.
Milwaukee M12 Multi-Tool
Likewise, a plunge cut saw blade is attached to the spindle in a similar manner.
Milwaukee M12 Multi-Tool
Plunge cut saw blade operating in forward orientation.
Milwaukee M12 Multi-Tool
The plunge cut saw blade can also be attached sideways if space constraint is encountered on the job site.
Milwaukee M12 Multi-Tool
The plunge cut saw blade operating in sideway orientation.
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Multi Tool Blades

Like the rotary tool, a multi-tool’s efficacy is only as good as the number of tool attachments and accessories available at its disposal. Since this set came with minimal attachments, I searched online and bought this 47-piece set of comprehensive blade attachments (see left) for the multi-tool. These third party blades can be found in the links given at the end of this article.

Milwaukee M12 Multi-Tool
The speed setting wheel starts from 0 and 2…
Milwaukee M12 Multi-Tool
…and rolls up to level 12 – to a maximum speed of 20,000 oscillations per minute!
using a multi-tool
Using the Milwaukee M12 Multi-Tool to remove silicone strip on the wall.

The Milwaukee M12 Multi-Tool has 12 speed settings which command its powerful 12V motor to deliver between 5,000 to 12,000 oscillations per minute.

The oscillations are very slight – at only 1.5 degrees to each side left and right – just a minuscule 3 degrees overall as it sways from far left to far right and back. Seen with the naked eye, a blade attached to it would seem like it was only vibrating in place, but it is actually making very fast sawing motions about its pivot point.

Pushing an oscillating saw blade at five-digit cycles per minute against wood or plasterboard results in very speedy cuts into the material.

With a narrow blade such as the one that came with the set, it is easy to make small cuts in tight spaces, spaces where a conventional saw may find it difficult or impossible.

Milwaukee M12 Multi-Tool
Using the Milwaukee to make plunge cuts into partition walls to make rectangular cut-outs for a receptacle.
Milwaukee M12 Multi-Tool
Change to a semi-circular saw blade to remove grouting on tiled walls.

The plunge saw blade can be used to make plunge cuts into plasterboard or partition walls, making it easy to cut square or rectangular holes for power socket outlets and receptacles.

With the M12 Multi-Tool, this kind of holes can now be cut without first drilling a hole at one or all four corners before sawing, which is normally done prior to saw-outs with a conventional saw. This can be done in both plasterboard and wood.

Milwaukee M12 Multi-Tool
Make straight cuts along the length of lumber and wood pieces…
Milwaukee M12 Multi-Tool
…or cut into door frames to make way for new flooring. Before the advent of the multi-tool, this used to take a longer time to accomplish.
“With the right attachments, the Milwaukee M12 Multi-Tool can also be used to saw metal pipes and conduits.”

With the right attachments, the Milwaukee M12 Multi-Tool can also be used to saw metal pipes and conduits. This requires the bimetal types of saw blades, which can be purchased separately.

Although Milwaukee sells a set of these, most OEM blades available in the market may also be used, as the M12 Multi-Tool set comes with a universal adapter that allows it to be compatible with other blades which you may already own from a different multi-tool.

Milwaukee M12 Multi-Tool
Scrape base layer and adhesive off flooring upon removing old carpeting…
Milwaukee M12 Multi-Tool
…or scrape just about anything with a suitable tool and blade attachment!
“…an indispensable tool suitable for the remodeller, electrician, maintenance repair technician, flooring contractor, casual woodworker and DIY enthusiast.”

Like its sibling the M12 Rotary Tool, the M12 Multi-Tool is an indispensable tool suitable for the remodeller, electrician, maintenance repair technician, flooring contractor, casual woodworker and DIY enthusiast.

A multi-tool can accomplish cuts in under a minute which could otherwise take over 10 minutes to complete. Due to short blade profiles and unique manner of oscillations, the M12 Multi-Tool can go where most other tools can’t go, and it’s left to the imagination of the tool user how best to deploy it to action.

Milwaukee M12 Multi-Tool
The Milwaukee M12 Multi-Tool works best in areas with space constraints…
Milwaukee M12 Multi-Tool
…be it sanding, grinding, sawing or cutting!

The Milwaukee M12 Multi-Tool runs on the M12 REDLITHIUM Battery which delivers up to 25% more runtime than the competition.

A fuel gauge is found just above the speed setting wheel, giving the user an indication of how much charge is left in the battery. These REDLITHIUM batteries fully charge in 30 to 40 minutes, so downtime is not something you’ll often encounter with a spare battery or two.

Milwaukee M12 Multi-Tool
The rubber overmold on the Milwaukee M12 Multi-Tool extends on each side of the tool…
Milwaukee M12 Multi-Tool
…to protect its surface when it is placed and laid on its sides.

Specifications

Specifications Technical Data
Operating battery voltage 12 V Lithium-ion
Oscillation angle 3o end-to-end, i.e. 1.5o each side
Speed 5,000 – 20,000 oscillations per minute
Variable speed dial 12 speed settings
Length 10-¼”
Weight 1.63 lbs

The Milwaukee M12 Multi-Tool in Action

Conclusion

multi-tool uses
The Milwaukee M12 Multi-Tool removed a tough silicone strip on the wall with aplomb.

Recently, I was hired to remove a stretch of glass panels and a glass door in an office renovation job. This left a strip of silicone on the partition wall which had to be removed.

My hired hand tried to work the strip out by scraping it with a metal scraper. It was obvious from the amount of energy expended, the sweat pouring down on his forehead and cheeks, and the constipated look on his face that this was no easy endeavour.

I took the Milwaukee M12 Multi-Tool out, attached a suitable scraper, and took it off the wall with absolute ease (right). The Multi-Tool was indeed invented for a job like this. Definitely.

I use the Milwaukee M12 Multi-Tool mostly for making special plunge cuts into wood and into plaster walls and ceilings.

While it is capable enough to cut pipes and conduits ranging from PVC to copper and EMT, I would normally use the Milwaukee M12 Hackzall Recip Saw instead.

However, if the pipe needs to be flush cut to the surface, the Milwaukee M12 Multi-Tool is there for a perfect job!

SEE ALSO:


MILWAUKEE M12 MULTI-TOOL DEALS

MILWAUKEE M12 POWER TOOLS

MILWAUKEE POWER TOOLS FOR GRINDING


MILWAUKEE POWER TOOLS FOR DRILLING AND DRIVING


MILWAUKEE POWER TOOLS FOR SAWING AND CUTTING


MILWAUKEE MEASURING TOOLS AND INSTRUMENTATION


OTHER MILWAUKEE POWER TOOLS


MILWAUKEE POWER TOOL COMBO SET


MILWAUKEE POWER TOOL ACCESSORIES AND POWER PACKS


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