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March 5, 2021

Professional Tool Reviews for Pros


Masterforce Boost Brushless Oscillating Multi-Tool Review

Pro Rating
  • Pro Rating 8.8

The Masterforce Boost Oscillating Multi-Tool is an exciting upgrade that performs very well with less vibration at a price well below premium brands.

Overall Score 8.8 (out of 10)

Masterforce Boost Delivers the Next Level of Cordless Tool Performance

The Masterforce Boost Oscillating Multi-Tool delivers ramped up power and speed with less vibration thanks to major upgrades. Boost technology brings Masterforce into the advanced cordless tool world and we tested it against the best cordless models to see how well this budget-friendly design performs.

Pros

  • Advanced Boost battery and brushless motor technology
  • Easy and fast blade change system
  • Isolated head significantly reduces vibration
  • Variable speed dial
  • Twin LED lights
  • Excellent value at $99.99 (bare tool)

Cons

  • No kit option available

Masterforce Boost Oscillating Multi-Tool Performance

The Masterforce Boost Oscillating Multi-Tool uses its variable speed brushless motor to deliver between 11,000 and 18,000 oscillations per minute.

It features a 1.8° angle of oscillation to both the left and the right, for a total of 3.6°. Between the power of the motor and the aggressive cutting angle, the Boost Oscillating Multi-Tool gets work done impressively fast for a tool at its price point. It’s not the fastest out there—you’ll have to bump your budget up significantly to get there. However, it’s on par with several of the Pro brands we tested.

Masterforce Boost Oscillating Multi-Tool Removing Grout

Masterforce Boost Oscillating Multi-Tool Blade Change

Masterforce sticks with the common tool-free lever and bolt system for securing blades and other accessories. Simply pulling the lever to its release position is enough to switch out blades that have a rear cutout.


When you need to pull the bolt completely off for enclosed accessories, such as sanding pads, it’s a simple push and twist action to release it. It’s among the simplest and fastest changes for this locking style.

Masterforce Boost Oscillating Multi-Tool Blade Change

PTR Oscillating Tool Test Track Performance

Bringing its performance and blade changes together on the PTR Oscillating Tool Test Track, the Masterforce Boost Oscillating Multi-Tool finished in 1:52. That was tied for the 4th fastest time we’ve tested so far.

The Test Track consists of five sections and two blade changes. You can check out the full details in our head-to-head review or just roll with this summary:

  • Undercutting a door jamb
  • Cutting out drywall for an electrical box
  • Cutting five finish nails to remove drywall
  • Removing an 18-inch line of grout
  • Sanding a 6-inch section of 2×4

Masterforce Boost Oscillating Multi-Tool Vibration Control

Masterforce’s cordless oscillating tool features a reduced vibration system that they tell us reduces user fatigue by up to 75% when compared to the competition. With its isolated head design, we clearly felt less vibration than other tools without an upgraded vibration control system.

While it’s a huge improvement, it’s not quite up to the same level as Milwaukee and Fein. We also noticed that it has some movement as you press into the cut. It didn’t affect the overall accuracy of our cuts, but it was noticeable and something that might take you a few cuts to get used to.

Additional Features

  • Lock-on switch
  • Variable speed dial
  • Twin LED light system
Variable Speed Dial

Pricing

The Masterforce Boost Oscillating Multi-Tool is sold exclusively at Menard’s, either in-store or online. It comes as a bare tool, retailing for $99.99 and including one high carbon steel wood plunge-cut blade.

There’s no kit option available at the moment and you’re going to want a Boost battery to get the best performance. 2.5Ah batteries are $69.00 and 5.0Ah run $99.99. You can also snag one by grabbing the Boost drill/driver kit for $139.99.

The Bottom Line

The Masterforce Boost Oscillating Multi-Tool is an exciting upgrade that performs very well with less vibration at a price well below premium brands. If you’re adding other Boost tools to your arsenal, this is one you should put in your basket to go with them.

Masterforce Boost Oscillating Multi-Tool Specs

  • Model: Masterforce 5921.1
  • Motor: Brushless
  • Voltage: 20V Max
  • Oscillations per Minute: 11,000-18,000
  • Oscillation Angle: 3.6º (1.8º left and right)
  • Variable Speed: Yes
  • Accessory Change System: Toolless
  • Weight: 2.31 lbs.
  • Warranty: 3 year
  • Price: $99.99 (bare tool)

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