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The DEWALT DWE402W 4-1/2-inch angle grinder combines an 11 Amp motor at 11,000 RPM with a Dust Ejection System and tool-free wheel changes for faster grinding, cutting, and surface prep.
Pair withDEWALT DWE4120 4-1/2-Inch Paddle Switch Angle Grinder$39.50
Categories : tools
SKU : WOR-TOO-456
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The DEWALT DWE402W 4-1/2-inch angle grinder is a workhorse for metal fabrication, welding, masonry, and general shop use. Its 11 Amp AC/DC motor spins at 11,000 RPM to power through grinding, cutting, and surface preparation. The standout feature is the Dust Ejection System—it channels damaging dust and debris out through the air intake vents, protecting the motor and extending tool life. Add the Quick-Change wheel release and the One-Touch guard, and you have an angle grinder that keeps you working without slowdowns.
The Dust Ejection System is a genuine advantage for users who cut tile, concrete, or metal in dusty environments. Instead of letting abrasive particles settle inside the tool, it pushes them out, reducing wear on the commutator and brushes. This directly contributes to longer tool life and consistent performance.
Changing grinding or cutting wheels usually means digging for a wrench. The DWE402W’s Quick-Change wheel release lets you swap wheels by hand—just press the release and twist. The One-Touch Guard rotates 360 degrees with a single action, so you can reposition the guard to stay protected no matter how you hold the grinder. The matching wheel flanges let you use common cut-off and grinding accessories.
The paddle switch with safety lock-off prevents accidental starts, and the low-profile gear case allows closer access in tight spots. The grinder is suited for both professional contractors and serious DIYers who need a reliable corded grinder for metal, concrete, and tile work.
It comes with a 4-1/2-inch abrasive wheel included, so you can start working right out of the box.
11 Amp AC/DC motor: delivers 11,000 RPM for aggressive material removal
Dust Ejection System: expels damaging dust to protect the grinder’s internals
Quick-Change wheel release: tool-free wheel changes without a wrench
One-Touch guard: 360-degree rotation for fast adjustment and safety
Low-profile gear case: fits into tighter cutting and grinding positions
Guard: One-Touch, 360° rotating
Model: DWE402W
Power: 11 Amp
Switch: Paddle with safety lock-off
Product Type: Angle Grinder
No-Load Speed: 11,000 RPM
Wheel Release: Quick-Change, tool-free
Wheel Diameter: 4-1/2 in (115 mm)
Dust Protection: Dust Ejection System
Included Accessories: 4-1/2 in abrasive wheel
Seller: Workbench World
MPN: DWE402W
Grinders generate dust that can destroy a motor from the inside. Traditional grinders draw dust into the housing, where it abrades the commutator and brushes. The DWE402W’s Dust Ejection System forces particles out, so your grinder stays running smoothly longer—even on dirty jobs.
Use a grinding wheel for removing welds and stock, a cut-off wheel for slicing metal, and a wire wheel for cleaning surfaces. The 4-1/2-inch size gives you enough material removal rate while allowing access in tight spaces.
The One-Touch guard rotates 360 degrees and locks in place. Always adjust the guard to direct sparks away from your body and give you a clear view of the work area. The tool-free knob makes changes quick, so you can switch guard position as you move around the job site.
Yes, but you need to use a diamond or masonry cut-off wheel rated for cutting concrete. The grinder’s dust ejection system is especially beneficial for concrete dust.
Press the quick-release button, turn the wheel lock nut, and remove the wheel. Install the new wheel and release the lock. No wrench is required.
It has a paddle switch with safety lock-off, which can be more comfortable to hold and provides better start/stop control.
It uses a 5/8-inch-11 arbor, standard for 4-1/2-inch angle grinders in the US.
It channels airborne dust and debris out through the air intake vents, preventing them from entering the motor and extending the life of the tool.
Great grinder, easy to change wheels. The dust ejection system works.
This grinder has plenty of power. It's a bit heavy for extended overhead work. The wheel guard is sturdy. The dust ejection keeps the tool cleaner. Overall, a good buy.
Does its job well.
It grinds and cuts effectively. The spindle lock is handy. I wish the handle had more grip.
I've used this for cutting metal, grinding welds, and prepping surfaces. The motor doesn't bog down. The tool-free guard adjustment is convenient. The dust ejection system actually keeps debris away from my hands. It's comfortable to hold. Highly recommend it.
Powerful and easy to handle.
