DeWalt
DeWalt DCST972 FLEXVOLT 60V MAX 17" Brushless String Trimmer
$329
Released 2021
Best String Trimmers · head-to-head
DeWalt DCST972 FLEXVOLT 60V MAX 17" Brushless String Trimmer vs Ryobi RY40250 40V Expand-It Attachment Capable String Trimmer
A sourced, side-by-side comparison. Ryobi RY40250 40V Expand-It Attachment Capable String Trimmer is cheaper at $149. Every spec and price links to its source.
Ryobi
Ryobi RY40250 40V Expand-It Attachment Capable String Trimmer
$149Cheaper
Which is better: the DeWalt DCST972 FLEXVOLT 60V MAX 17" Brushless String Trimmer or Ryobi RY40250 40V Expand-It Attachment Capable String Trimmer?
The Ryobi RY40250 40V Expand-It Attachment Capable String Trimmer wins 1 of the 1 specs we compare head to head; the other wins 0. The Ryobi RY40250 40V Expand-It Attachment Capable String Trimmer is the cheaper at $149. The Ryobi RY40250 40V Expand-It Attachment Capable String Trimmer both leads on specs and costs less — the straightforward pick.
See DeWalt DCST972 FLEXVOLT 60V MAX 17" Brushless String Trimmer on Amazon See Ryobi RY40250 40V Expand-It Attachment Capable String Trimmer on Amazon
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | DeWalt DCST972 FLEXVOLT 60V MAX 17" Brushless String Trimmer | Ryobi RY40250 40V Expand-It Attachment Capable String Trimmer |
|---|---|---|
| US price | $329 | $149 |
| Brand | DeWalt | Ryobi |
| Released | 2021 | — |
| Power source | battery | battery |
| Cutting swath (in) | 17 in | 15 in |
| Shaft type | straight | straight |
| Line diameter (in) | 0.080 in | 0.080 in |
| Feed type | bump | bump |
| Engine cc or voltage | 60 V | 40 V |
| Weight (lb) | 10.3 | 8.92 |
| Release year | 2021 | — |
Sources — DeWalt DCST972 FLEXVOLT 60V MAX 17" Brushless String Trimmer: dewalt.com (verified 2026-06-19). Ryobi RY40250 40V Expand-It Attachment Capable String Trimmer: ryobitools.com (verified 2026-06-19).
What's the difference between the DeWalt DCST972 FLEXVOLT 60V MAX 17" Brushless String Trimmer and Ryobi RY40250 40V Expand-It Attachment Capable String Trimmer?
Where the two actually differ on the specs we track (3 of 7). Matching specs are omitted.
- Cutting swath (in): DeWalt DCST972 FLEXVOLT 60V MAX 17" Brushless String Trimmer 17 in vs Ryobi RY40250 40V Expand-It Attachment Capable String Trimmer 15 in
- Engine cc or voltage: DeWalt DCST972 FLEXVOLT 60V MAX 17" Brushless String Trimmer 60 V vs Ryobi RY40250 40V Expand-It Attachment Capable String Trimmer 40 V
- Weight (lb): DeWalt DCST972 FLEXVOLT 60V MAX 17" Brushless String Trimmer 10.3 vs Ryobi RY40250 40V Expand-It Attachment Capable String Trimmer 8.92