SKILSAW SPT77WML-01 15-Amp 7-1/4-Inch Lightweight Worm Drive Circular Saw , Silver
Best for
Best worm drive
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 4 trusted sources
Current price
$151.05
Updated Jun 27, 2026 · 1 min read
Sources behind this verdict
10 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, the SKILSAW SPT77WML-01 lightweight magnesium worm drive is the most consistently recommended worm-drive saw in the trade communities. On r/Carpentry, a high-trust user reports it 'still cuts just as square, straight, and fast as the day I bought it' after heavy framing and even wet masonry use, and r/HomeImprovement and r/woodworking commenters repeatedly single out the worm-drive torque and durability. The recurring theme is that the lower-RPM, high-torque gearing chews through damp wood and dense lumber more easily than a sidewinder.
What reviewers liked
- High-trust r/Carpentry and r/woodworking consensus on long-term durability and square cuts
- Worm-drive torque excels in wet and dense lumber per community reports
- Magnesium construction makes it the lightest in the worm-drive category
- Strong 4.8 Amazon average across 2,500+ reviews
Where it falls short
- Heavier and bulkier than sidewinders; r/woodworking notes it 'might be too big for some'
- Worm drives require periodic oil maintenance
- Priced higher than entry-level sidewinders
- No high-trust lab measurement in the signals to confirm community claims
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Across the reviewers we read, the SKILSAW SPT77WML-01 lightweight magnesium worm drive is the most consistently recommended worm-drive saw in the trade communities. On r/Carpentry, a high-trust user reports it 'still cuts just as square, straight, and fast as the day I bought it' after heavy framing and even wet masonry use, and r/HomeImprovement and r/woodworking commenters repeatedly single out the worm-drive torque and durability. The recurring theme is that the lower-RPM, high-torque gearing chews through damp wood and dense lumber more easily than a sidewinder.
- Lightest magnesium construction reduces user fatigue for less down time
- Cut-ready depth of cut system helps with quick, accurate depth measurements
- 53° bevel allows users to complete a wider variety of cuts
- 15 Amp of power gives users the power to rip through more lumber in less time
- The anti-snag lower guard provides smooth operation for small cut-off pieces
It still cuts just as square, straight, and fast as the day I bought it. I've used it heavily both in framing and with a wet masonry blade in it ...
Generally they have lower rpms, and the worm drive multiplies the torque which makes it more easy to cut through damp wood and nails and ...
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“Skil Worm Drive Saw (SPT77WML). Pros and Cons.” · YouTube
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