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Deal.ai › DeWalt
DeWalt
DeWALT Corded 4-1/2-in. Paddle Switch Small Angle Grinder (DWE4120)

DeWALT Corded 4-1/2-in. Paddle Switch Small Angle Grinder (DWE4120)

4.2(16 ratings)

Best price now

$93.65at ToolupChecked 1 h ago

Compared across 2 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $93.65 at Toolup (checked Nov 14, 2026).
  • Checked at 2 stores.

Our take on the DeWALT Corded 4-1/2-in. Paddle Switch Small Angle Grinder (DWE4120)

The DeWalt DWE4120 is a corded 4-1/2-inch angle grinder with a 9 amp motor that spins at 12,000 rpm. Its paddle switch and tool-free One-Touch guard suit quick wheel changes and one-handed control. It is a workhorse for cutting and grinding metal, and it competes with grinders like the Makita 9557PB and Bosch 1375A on power and speed rather than on vibration control or finesse. Owners like the power and the guard; some find it loud and heavy for long overhead work.

Best forMetal cutting and weld grindingGarage and fabrication shop useBuyers who want a proven corded grinderQuick wheel and guard changes
Pros
  • 9 amp, 12,000 rpm motor for fast material removal
  • Paddle switch is easy to operate with gloves
  • One-Touch guard rotates 360 degrees without a tool
  • AC/DC motor works off a generator or DC supply
  • Simple, durable corded design with few electronics to fail
Cons
  • Heavy and bulky for overhead or one-handed work
  • Loud in use and vibrates noticeably
  • No variable speed or soft start
  • Corded, so it needs an outlet or generator

DeWALT Corded 4-1/2-in. Paddle Switch Small Angle Grinder (DWE4120) prices at every store

  • ToolupNew

    In stockReturn policy

    $93.65Checked 1 h ago
    Visit Toolup
  • The Power Tool StoreNew

    In stockReturn policy

    $99.99Checked Nov 8
    Visit The Power Tool Store

Also available at

  • Tool NutCheck price at Tool Nut

What reviewers say

  • 4.2 / 516 ratings

Owners rate the DWE4120 well for its power and the convenience of the paddle switch and tool-free guard. Complaints center on weight, noise and vibration during extended use.

What people mention
  • PowerPraisedOwners say the 9 amp motor removes material fast and holds speed under load.
  • SwitchPraisedThe paddle switch is described as easy to hit and control, even with gloves on.
  • GuardPraisedThe One-Touch guard rotates without a tool, which owners find handy for repositioning.
  • WeightCriticisedSome owners find the grinder heavy and tiring for overhead or one-handed work.
  • Noise and vibrationCriticisedReviewers mention it is loud and vibrates noticeably during longer grinding jobs.
  • Speed controlMixedSome wish for variable speed or soft start for delicate work and thinner wheels.

About the DeWALT Corded 4-1/2-in. Paddle Switch Small Angle Grinder (DWE4120)

The DeWALT DWE4120 is a corded 4-1/2-inch small angle grinder with a paddle switch. It has a 9 amp AC/DC, 12,000 rpm motor designed for faster material removal and higher overload protection. The high-efficiency motor runs at low operating temperatures.

The One-Touch Guard rotates 360 degrees with a single action.

Type
Corded small angle grinder
Size
4-1/2 in.
Switch
Paddle switch
Motor
9 amp AC/DC
Speed
12,000 rpm
Guard
One-Touch Guard, rotates 360 degrees
In the box
One-Touch Guard, wrench

Questions and answers

Is the DWE4120 good for cutting metal?
Yes. The 9 amp motor and 12,000 rpm speed handle cutoff wheels on steel and rebar well. Use the correct wheel and guard position for the material.
Does it have a variable speed dial?
No. The DWE4120 runs at a single fixed speed. If you need slow speeds for polishing or delicate work, a variable-speed grinder is a better fit.
What wheels does it take?
It uses 4-1/2-inch wheels with a 7/8-inch arbor, the common size for this class of grinder.
Can it run off a generator?
The motor is AC/DC rated, so it can run from a DC supply or generator that provides adequate power. Check that the source can handle the startup draw.
What comes in the box?
The grinder, a One-Touch guard and a wrench for wheel changes. Wheels are not included.
How does it compare with the Makita 9557PB?
Both are 4-1/2-inch corded grinders. The DeWalt has a paddle switch and slightly higher speed; the Makita is often described as lighter and smoother. Pick the DeWalt for power and the paddle switch.
Where is the DeWALT Corded 4-1/2-in. Paddle Switch Small Angle Grinder (DWE4120) cheapest?
At Toolup, for $93.65, as of our latest check.
What do buyers say about the DeWALT Corded 4-1/2-in. Paddle Switch Small Angle Grinder (DWE4120)?
Rated 4.2 out of 5 from 16 ratings.
Where can I buy the DeWALT Corded 4-1/2-in. Paddle Switch Small Angle Grinder (DWE4120)?
3 stores we checked sell it, including Toolup, The Power Tool Store, Tool Nut.

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