Free Shipping On Power Equipment (Lower 48) Tax-Free Except Illinois Orders
Power Equipment Quick Search

DeWalt Handheld DCST990M1 - DeWalt (15") 40-Volt MAX* 4 Ah Lithium-Ion XR Cordless String Trimmer for sale.

Power Equipment Direct Offers Free Shipping and a Tax-Free Guarantee on DeWalt Handheld DCST990M1.


DeWalt (15") 40-Volt MAX* 4 Ah Lithium-Ion XR Cordless String Trimmer

DeWalt Handheld Power Equipment and Accessories
Model: DCST990M1
(Based on expert analysis, manufacturer ratings and customer reviews)

3.7 out of 53.7 out of 53.7 out of 53.7 out of 53.7 out of 5
3 Reviews
Share This Product
Plus 1 This Product
Tweet This Product
Pin It!
In-Stock In-Stock
Ships Thursday, Aug 17th

Estimate Arrival

This Item cannot be shipped to
HI and AK.
+$50.00 What is Rush Order Processing?
Extended Warranty
Excludes CA

Free Shipping
No Sales Tax*
(Except IL)
Free Shipping
No Sales Tax*
(Except IL)
Visit Site
Sales Tax Extra
Visit Site
  • Features
  • Specs
  • Q&A 
  • 3
  • Articles
  • Shipping
  • Accessories
Mid Grade
Power Type
Cordless Electric
Shaft Type
Straight Shaft String Trimmers
DeWalt« 40V MAX* XR Series Cordless String Trimmer
Includes DCST990 String Trimmer, battery and charger

The power, runtime & durability the professional landscaper demands
No more fuel stops, fuel-mixing, pull starting or engine maintenance

40V MAX* 4.0Ah Lithium Ion Battery Pack w/ LED Fuel Gauge
No Memory and virtually no self-discharge for max productivity

XR-Series Extreme Runtime Brushless Motor
Maximizes motor efficiency, durability and runtime
Up to 57% more runtime than standard brushed motors

15" Cutting Path For Maximum Productivity
.080" Dual-line head with bump-feed line advancement for ease of use
*Not compatible with blades or other accessories

Variable Speed Trigger - More Torque To Maintain Cut-Speed
Patented gear-drive design provides smooth and consistent trimming
Combined with a High/Low switch for more runtime control than before

Part Of DeWalt's 40V MAX* Series
Includes other outdoor tools like leaf blowers & hedge trimmers

DEWALT« High Performance Industrial Tool Warranty Package
90-Day Money Back Gurantee, 3-Year Limited Warranty & 1-Year Service Contract

Trimmer Head Type
Bump Feed
Line Diameter
0.08 Inches
Max Cutting Diameter
15 Inches
Tool-Less Line Replacement
Number of Cutting Edges
2 Strings
Shaft Shape
Attachment Capable
Swivel Cutting Head
Shaft Length
53 Inches
Battery Included
Battery Voltage
40 Volts
Battery Type
Lithium Ion
13 Pounds
Product Length
77.75 Inches
Product Width
11.125 Inches
Product Height
8.875 Inches
Consumer Warranty
3 Years
Download Documents
Need Help? Call Our Experts.
View Accessories For This Product.
Read Reviews
How-To Library
Subject: Store ID: Product ID: Data Category: Brand Category:

*Ask Dale about the DeWalt Handheld DCST990M1. Sorry, no repair questions:




 Receive Weekly How-To Tips & Specials 

*Required Field Submit

Questions before buying? Ask Dale about this item. Sorry, do not submit repair related questions.

DeWalt Handheld DCST990M1 Reviews & Ratings
3 Reviews  Sort by 
Dale, the String Trimmer Expert
Power Equipment Expert

Product Expert
Total Reviews
35 Reviews
Total Helpful Votes
1927 Helpful Votes
Power Equipment Direct Recommended

The DeWalt DCST990M1 cordless string trimmer delivers the performance of a gas-powered trimmer with the convenience that makes cordless tools so popular. This trimmer clears a 15-inch wide swath of thick grass and weeds in one pass to get the job done fast.

The DeWalt DCST990M1 features a brushless motor for efficiency and long life. The patented gear drive system delivers greater torque and maintains consistent cutting speed - even under heavy load. A variable speed trigger gives the... more
Dale Recommends This Model
Was this review helpful?
Nancy W.
Frazee, MN
Purchased from Power Equipment Direct
Purchased 7/23/16
5 out of 55 out of 55 out of 55 out of 55 out of 5
Great Trimmer
I really like my Dewalt 40v string trimmer. Plenty of power and I can start it without worrying about choking it or flooding it! Light weight too!
Nancy Recommends This DeWalt Handheld Product
Was this review helpful?
Fernando D.
Brooklyn, NY
Purchased from Power Equipment Direct
Purchased 5/27/16
1 out of 51 out of 51 out of 51 out of 51 out of 5
Died After A Half Hour
I read the reviews and thought this was a winner. It arrived on time, looked great, charged up easily, and ran a good half hour. Then it died, and there was no getting the motor to turn back on.
Was this review helpful?
Free Freight
  • Ships via FedEx Ground
  • Free to Lower 48 States
We currently CANNOT ship this product to Alaska, Hawaii or any destination outside of the United States
Priority Shipment
  • Faster Delivery Times
  • Ships Same Business Day
  • Guaranteed In-Stock
  • $50 Service Charge
 Learn More  Learn More

Buy This

Learn More About 21-380



Buy This

Learn More About 501234513

Only 3 In-Stock
Next Day Air Available


Buy This

Learn More About DCB404



Learn More About DCB114


Sign Up
Receive Weekly How-To Tips & Specials

Buy DeWalt (15") 40-Volt MAX* 4 Ah Lithium-Ion XR Cordless String Trimmer at Power Equipment Direct. Read reviews and articles. Wide Selection of accessories available, including Oregon Gatorline (416') .080 Diameter String Trimmer Line, Husqvarna Classic Protective Glasses (Indoor/Outdoor) and DeWalt 40-Volt MAX* 4Ah Premium XR Lithium Ion Battery.

Contact Power Equipment Direct