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SKIL 16-5/16 In. Magnesium Worm Drive Skilsaw vs SKILSAW SPT77W-01 15-Amp 7-1/4-Inch Aluminum Worm

Updated July 2026 — SKIL 16-5/16 In. Magnesium Worm Drive Skilsaw wins on weight and cutting depth, SKILSAW SPT77W-01 15-Amp 7-1/4-Inch Aluminum Worm wins on price and user comfort.

The SKIL 16-5/16 In. model excels in cutting capacity and motor performance, while the SKILSAW SPT77W-01 is more affordable and user-friendly.

Why SKIL 16-5/16 In. Magnesium Worm Drive Skilsaw is better

Cutting Capacity

6-1/4 inch vs 7-1/4 inch cutting capacity

Motor Performance

More powerful motor for heavy-duty tasks

Build Quality

Durable magnesium construction

Why SKILSAW SPT77W-01 15-Amp 7-1/4-Inch Aluminum Worm is better

Price

$181.28 vs $636.99

User Fatigue

Lighter weight at 14.2 lbs

Versatility

51° bevel capacity for varied cuts

Overall score

SKIL 16-5/16 In. Magnesium Worm Drive Skilsaw
85
SKILSAW SPT77W-01 15-Amp 7-1/4-Inch Aluminum Worm
75

Specifications

SpecSKIL 16-5/16 In. Magnesium Worm Drive SkilsawSKILSAW SPT77W-01 15-Amp 7-1/4-Inch Aluminum Worm
Cutting Capacity6-1/4 inches7-1/4 inches
Motor15 AMP Dual-Field15 AMP Dual-Field
Weight16.5 lbs14.2 lbs
Price$636.99$181.28
Bevel CapacityN/A51°

Dimension comparison

SKIL 16-5/16 In. Magnesium Worm Drive SkilsawSKILSAW SPT77W-01 15-Amp 7-1/4-Inch Aluminum Worm

Price Comparison

The SKIL 16-5/16 In. Magnesium Worm Drive Skilsaw Circular Saw is priced at $636.99, while the SKILSAW SPT77W-01 15-Amp 7-1/4-Inch Aluminum Worm Drive Circular Saw is significantly cheaper at $181.28. This makes the SPT77W-01 about 72% less expensive than the SPT70V-11. For those who are budget-conscious or looking for a more economical option without sacrificing quality, the SPT77W-01 presents a compelling case. The price difference is substantial, making the SPT77W-01 an attractive choice for both casual DIY enthusiasts and professionals seeking a reliable saw without breaking the bank.

Cutting Capacity

The SKIL 16-5/16 In. Magnesium Worm Drive Skilsaw boasts a cutting capacity of 6-1/4 inches, which is considerably larger than the 7-1/4-inch cutting capacity of the SKILSAW SPT77W-01. The SPT70V-11 is designed for heavy-duty tasks, allowing you to cut through lumber up to 6-1/4 inches thick in a single pass. This feature positions it as an excellent option for those undertaking larger construction projects where deep cuts are necessary. In contrast, while the SPT77W-01 is versatile and effective for general cutting tasks, its smaller capacity may limit its use in more demanding situations.

Motor Performance

Both saws feature advanced Dual-Field motors, but they are designed for different applications. The SKIL 16-5/16 In. model’s 15 AMP motor is built to deliver relentless power for the biggest jobs while keeping the motor cooler. This is a crucial advantage for prolonged use in high-demand situations. On the other hand, the SKILSAW SPT77W-01 also features a 15 AMP Dual-Field motor, tailored for saws to enhance cooling and extend tool life. While both motors are powerful, the larger capacity of the SPT70V-11 may give it an edge in heavy-duty applications.

Build Quality and Design

The SKIL 16-5/16 In. Magnesium Worm Drive Skilsaw is composed of durable magnesium die-cast materials, which not only reduce weight but also enhance durability. This construction ensures that the saw remains lightweight while still being tough enough for demanding jobs. Conversely, the SKILSAW SPT77W-01 is built with aluminum, making it lighter at 14.2 lbs without the blade, cord, and wrench. While both saws are designed for durability, the magnesium construction of the SPT70V-11 may provide additional resilience in tough environments, making it suitable for heavy-duty professional use.

User Fatigue

User fatigue is a critical factor when selecting a circular saw, especially for prolonged use. The SKILSAW SPT77W-01 is specifically designed to reduce user fatigue with its lightweight construction at 14.2 lbs. This makes it easier to handle for extended periods, ideal for professionals or DIY enthusiasts who require a saw for long hours. In contrast, the SKIL 16-5/16 In. model, while powerful, may be heavier due to its robust magnesium build. Therefore, those prioritizing ease of handling might find the SPT77W-01 more suitable for their needs.

Versatility

The SKILSAW SPT77W-01 offers versatility with its 51° bevel capacity, allowing users to make a range of cuts, which is beneficial for various projects. This adaptability makes it a popular choice among contractors and those who may need to switch between different cutting angles frequently. The SKIL 16-5/16 In., while powerful and capable, does not highlight a similar feature in the available data. Its design is more focused on making deep cuts, making it less versatile in terms of angle adjustments for varied cuts compared to the SPT77W-01.

Sales Rank

In terms of sales rank, the SKILSAW SPT77W-01 holds a better position at 39,282 compared to the SKIL 16-5/16 In., which is ranked at 52,459. This indicates that the SPT77W-01 is more popular among consumers, likely due to its affordability and practical features. A higher sales rank often reflects greater customer satisfaction and demand, making the SPT77W-01 a trusted choice for many users looking for a reliable circular saw.

Which should you buy?

Choosing between the SKIL 16-5/16 In. Magnesium Worm Drive Skilsaw and the SKILSAW SPT77W-01 ultimately depends on your specific needs. If you require a saw with a larger cutting capacity and are focused on heavy-duty tasks, the SPT70V-11 may be the better option despite its higher price. However, if budget, user fatigue, and versatility are your main concerns, the SPT77W-01 stands out as a top contender, especially with its significantly lower price and lighter weight.