VERIFIED · 2026 canonical · www.jaspecs.com

DEWALT® 4-1/2-in. - 5-in. (115 - 127mm) Flathead Paddle Switch Small Angle Grinder, No-Lock-On

Model number
DWE4120FN

The DWE4120FN is a corded 4.5-in. to 5-in. flathead paddle switch small angle grinder with a 13 Amp motor delivering 10,000 RPM. The flathead body design reduces overall height for working in confined spaces. The no-lock-on paddle switch cuts power immediately when released. Compatible with both 4.5-in. and 5-in. Type 27 wheels. Carries DEWALT's 3-year limited tool warranty.

identifiers stable · addressable
Model no.
DWE4120FN
Brand
DEWALT
Category
Angle Grinder
Canonical URL
/dewalt/angle-grinder/dwe4120fn-dewalt-4-12-5-in-115-127mm-flathead-paddle-switch-small-angle-grinder-no-lock-on/
Official page dewalt.com →
14 spec rows · each row is anchorable

§ Specifications

#specifications
Product Type
Angle Grinder
Cordless / Corded
Corded
Power Source
AC
Height (in.)
5.3
Length (in.)
14.8
Weight (lbs)
6.15
Width (in.)
7
Country of Origin
China
Barcode (UPC)
885911622608
Piece Count
5
Disc Diameter In
5
No-Load Speed (RPM)
10,000
Amps
13
Warranty
3-year limited (tool)

§ What's Included

01 (1) DWE4120FN Flathead Paddle Switch Grinder
02 (1) Side Handle
03 (1) Hex Key
04 (1) Inner Flange
05 (1) Outer Flange
06 (1) 5-in. Type 27 Guard

§ Warranty

3-year limited (tool)

§ FAQ

What is the flathead design on the DWE4120FN?

The flathead body profile reduces the overall height of the grinder head, which allows it to fit into tighter spaces than a standard angle grinder body. This is useful for grinding in corners, recesses, and confined areas on structural steel or pipework.

What disc sizes does the DWE4120FN accept?

The DWE4120FN accepts both 4.5-in. (115mm) and 5-in. (127mm) Type 27 grinding wheels. The included guard is sized for 5-in. wheels.

Does the DWE4120FN have a lock-on switch?

No. The DWE4120FN uses a no-lock-on paddle switch, which cuts motor power the moment the operator releases their grip. This is a safety requirement on many job sites and is mandated by certain industry standards.

How many amps does the DWE4120FN draw?

The DWE4120FN uses a 13 Amp motor delivering 10,000 RPM. This is a higher amp rating than the DWE402K/N, providing more power for demanding grinding tasks.

What is included with the DWE4120FN?

The DWE4120FN ships with a side handle, hex key, inner flange, outer flange, and a 5-in. Type 27 guard. No grinding wheel is included in the box.

How does the DWE4120FN compare to the DWE43114N?

Both are corded paddle-switch no-lock-on grinders with similar specs. The DWE4120FN uses a flathead body for low-profile access in confined spaces, while the DWE43114N has a standard body profile with E-Clutch electronic protection and is Made in USA.