SKILSAW SPT77WML: the benchmark worm drive saw
SKILSAW invented the worm drive saw and the SPT77WML continues that legacy at a more competitive price than Makita. The magnesium shoe and housing reduce weight to 13.2 pounds, which is meaningfully lighter than older all-aluminum models. The 15-amp motor did not flinch during sustained 2x10 rip cuts, and the DUAL-FIELD motor design runs cooler than comparable units in our test.
Check price on Amazon →We compared the best corded worm drive circular saws for power, cutting depth, and durability on the jobsite.
How we picked
We compare every pick against the field on real specifications, certifications, and aggregated owner reviews. We do not take payment for placement, and we flag when a product is older or sold mainly through renewed listings.
Top picks compared
| Pick | Best for | Score | |
|---|---|---|---|
| SKILSAW SPT77WML: the benchmark worm drive saw | Check price | ||
| Makita 5477NB: the premium alternative for heavy-duty use | Check price |
Our picks up close
SKILSAW SPT77WML: the benchmark worm drive saw
SKILSAW invented the worm drive saw and the SPT77WML continues that legacy at a more competitive price than Makita. The magnesium shoe and housing reduce weight to 13.2 pounds, which is meaningfully lighter than older all-aluminum models. The 15-amp motor did not flinch during sustained 2x10 rip cuts, and the DUAL-FIELD motor design runs cooler than comparable units in our test.
Makita 5477NB: the premium alternative for heavy-duty use
The Makita 5477NB weighs more and costs more, but it has a proven reputation for longevity on professional jobsites. The aluminum construction is more resistant to job-site impacts, and the blade brake feature stops the blade faster than the SKILSAW after trigger release. If you are a contractor who needs a saw to last 10 years of daily use, the Makita investment is justified.
Before you buy
Amperage
Fifteen amps is the standard for professional worm drive saws. Lower-amperage models bog down on thick materials.
Frame material
Magnesium is lighter than aluminum but equally durable for most applications. Choose based on how much you value reduced weight over the work day.
Bevel capacity
Most worm drive saws bevel to at least 45 degrees. Models with 50 to 53 degree capacity handle more compound angle cuts without repositioning.
Oil system
Oil-bath lubrication extends gear life significantly. Check that the oil sight glass is accessible and that the model uses a standard gear oil specification.
Blade brake
An electric blade brake stops the blade within seconds of releasing the trigger, reducing accident risk. It is increasingly standard on quality models.
Quick answers
Worm drive saws use a gear set oriented at 90 degrees that provides more torque and moves the motor behind the blade for better cut line visibility. Sidewinder saws place the motor beside the blade and spin faster.
Yes. The higher torque and improved visibility of worm drive saws make them popular for framing cuts in thick lumber and engineered materials.
Yes. Oil-bath worm drive saws require regular oil level checks and periodic oil changes. The manufacturer manual specifies the correct oil type and intervals.
Yes, most worm drive saws accept standard 7-1/4 inch blades. Some require specific arbor configurations, so verify compatibility before purchasing blades.
