What do worm drive saw reviews really tell you about this Skilsaw?
Worth it, for the right lumber
Why big lumber stalls a lightweight saw
You know the feeling before you even pick up the saw: halfway through a wet 6x beam, the blade starts to bog, the pitch drops, and you can feel the motor losing the argument. That's the fear behind every worm drive saw review, whether the extra weight and gearing on a saw like this actually buys you something on the cut, or whether it's just heavier hype sitting on a shelf.
How a worm drive saw actually delivers its torque
A worm drive saw turns the blade through a gear set instead of a direct belt: the motor sits behind the blade, and a worm gear meshes with the blade shaft at a right angle. That gearing trades blade speed for torque, which is why worm drives get chosen over sidewinders on framing crews. Lower RPM, more force at the blade, so it keeps cutting through wet, knotty 6x lumber instead of stalling the way a lighter saw does when the wood pushes back. Skil built this one to a 6-1/4 inch cutting capacity, deep enough to get through 6x stock in one pass instead of flipping the board and cutting twice, which matters on a deck ledger or a post cut where a second pass never lines up clean. The 15 amp Dual-Field motor keeps two sets of coils working instead of one, spreading the heat out so the saw runs at full power longer before it throttles back, useful here because a stalled worm drive motor takes real effort to restart under load. The magnesium die-cast footplate and housing do the other half of the job: worm drives have always run heavier than sidewinders because of that gear set, and magnesium claws some of that weight back without giving up the rigid footplate a true, square cut depends on. At 27.3 pounds it's still a two-handed saw, brass gearing included, and the weight sits toward the back where the motor lives, not out at the blade.
You're not buying a lighter saw here, you're buying torque that doesn't quit when the lumber gets thick and wet, and the weight sitting toward the back is the price tag on that gearing, not a design flaw someone forgot to fix.
Who the Skilsaw worm drive saw is built for, and who should skip it
Worth it if
- you regularly cut 6x lumber or thicker framing stock
- you want a saw that keeps torque through wet or knotty wood
- you're building decks, sheds, or post structures often enough to justify the weight
Skip it if
- you mostly cut studs, plywood, or trim around the house
- you want the lightest saw you can swing all day
- you're not doing framing-scale work on a regular basis
Not for occasional stud and plywood cuts where a lighter sidewinder is easier to live with.
The worm drive saw reviews verdict on this Skilsaw
If you're framing decks, cutting 6x posts, or running this saw daily on a job site, this is a quiet yes, it's built for exactly that fight. If you're cutting studs and plywood around the house a few times a year, a lighter sidewinder will do the job with less weight to swing and less to store.
Picture the first morning with it: you line up a 6x post, pull the trigger, and the saw just keeps moving through the cut instead of slowing down at the halfway mark, no second pass, no flipping the board. That's the whole point of the extra weight and gearing, and once you've felt a saw not bog down in thick lumber, going back to one that does feels like a step backward.
Amazon shoppers rate it 4.7 out of 5 across 846 ratings. That is their number, not ours.
Before you go
Are worm drive saws worth it?
Yes, if you regularly cut thick or wet lumber, because the gearing gives you torque a lighter sidewinder saw can't match; for occasional trim or stud cuts, a smaller sidewinder is easier to live with.
What are the disadvantages of a worm drive saw?
The main one is weight, since worm drive saws carry a gear set that sidewinders don't, so they run heavier and the balance sits farther back, which takes more effort to control overhead or on a ladder.
Who makes the best worm drive saw?
Skilsaw is the name most associated with worm drive saws since they built the original, and this model is currently their largest-capacity version.
Are worm drive table saws better?
Worm drive is a circular saw design, not a table saw category, so the real comparison people mean is worm drive versus sidewinder circular saws, and the worm drive wins on torque through thick stock while the sidewinder wins on weight and speed.
By the numbers
We have reviewed 97 home & garden products. 94% land where this one does: worth it, with a condition attached. Only 6% earn an unconditional yes at full price. Every verdict is published as open data in the Is It Worth It Reviews Verdict Dataset (CC BY 4.0).
Full spec sheet
| Brand Name | Skil |
|---|---|
| Model | SPT70V-11 |
| Unit Count | 1 Count |
| Number of Items | 1 |
| Included Components | SPT70V-11 16-5/16 In. SKIL Worm Drive Saw |
| Item Type Name | SPT70V-11 16-5/16 In. Worm Drive Circular Saw |
| Part Number | SPT70V-11 |
| Item Dimensions L x W | 24.5"L x 10"W |
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