Milwaukee Metal-Cutting Circular Saw 6370-20 Review Fast Clean Cuts

Description

Highlights of the Metal Cutting Circular Saw

Testing the MILWAUKEE Circular Saw, 8 In. Blade, 3700 rpm, 5/8″ (6370-20) has been quite the experience. This saw is engineered specifically for metal cutting, and it’s clear Milwaukee put a lot of thought into its design. The standout feature for me was the dry-cut technology that allows for faster, cleaner, and more affordable metal cutting. Unlike traditional abrasive wheels that spat sparks and metal shards everywhere, this tool produces a virtually spark-free wake with cool, burr and scorch-free edges. This makes cleanup a breeze and reduces the need for post-cut finishing — a huge time saver on any job site.

• The integral ChipTank cleverly collects and channels metal shavings, minimizing mess.
• Powered by a 13 amp motor with 3,700 RPM, it tears through tough materials without hesitation.
• The cermet-tipped blade lasts significantly longer than abrasive wheels — tests suggest at least 25 times the lifespan.

Drawbacks That Caught My Attention

Despite all these perks, a few issues surfaced during my hands-on use. The weight of 13.7 pounds can be tiring for extended use, especially if you’re working overhead or in tight spaces. The saw’s lack of a brake means the blade coasts for a bit after cutting, which isn’t ideal for safety-conscious users. Also, the bevel capacity is fixed at zero degrees, limiting versatility for angled cuts.

• The cord length of 15 feet might feel restrictive on larger job sites without an extension.
• No brake system means slower blade stopping time.
• The handle, made from thermoplastic elastomers, is comfortable but could use better vibration dampening for prolonged use.

User-Friendly Features and Handling

One feature that genuinely impressed me was the plunge lever located right next to the side handle. This design allows for quick, controlled plunge cuts, and I appreciated having both hands firmly on the saw throughout the operation for better stability. The on-board sight-line and blade point-of-entry indicators made it easier to keep cuts accurate, which is crucial when working with metal sheets or steel plates.

The saw’s durable magnesium blade shield not only protects the user but also effectively deflects hot chips and sparks, adding a layer of safety. Changing blades is straightforward thanks to the exclusive quick-release shield latch, which speeds up blade swaps and cleaning of the ChipTank. This attention to detail helps maintain workflow without unnecessary interruptions.

Performance on Different Metal Types

The saw handles up to 10 gauge sheets and 1/4-inch steel plates effortlessly, which covers most common metal cutting tasks I encountered. With proper technique, I even managed cuts on thicker steel up to 3/4 inch, although it required more patience and control. The cermet tipping on the blade teeth ensures sharpness retention and reduces impact damage, which translates to cleaner cuts and less downtime for blade maintenance.

Cold cutting metal, as this saw does, means the edges stay cool and manageable immediately after cutting, unlike abrasive wheels that leave hot and potentially dangerous edges. This feature alone is a major bonus, especially for metal roofing or fabrication work where time is money.

Price to Quality Ratio

Considering the features packed into this metal cutting saw, the price to quality ratio feels justified. The durability of the blade and motor alone makes it a smart investment compared to abrasive wheels that wear out quickly and require frequent replacements. Although it’s not the cheapest option on the market, the long-lasting cermet blades and robust build quality mean you get your money’s worth over time.

The saw comes with a full two-year warranty, which adds peace of mind for professionals relying on it daily. Keep in mind, this tool is designed for serious metal cutting applications rather than casual or DIY use, so its price aligns with its specialized capabilities.

Product Competitors and How It Stacks Up

Comparing this saw to other metal cutting tools like abrasive wheel saws or chop saws from brands such as DeWalt or Makita, the MILWAUKEE metal cutting circular saw stands out for its clean, spark-free cuts and integrated chip collection system. Many competitors still rely on abrasive wheels that generate excessive heat and sparks, creating safety hazards and messy work conditions.

However, some rivals offer bevel capabilities and lighter weights, which could be an advantage in more versatile or portable applications. The absence of a brake system on this Milwaukee model is also a point where some competitors might edge ahead in safety features. Still, for those prioritizing speedy, clean metal cutting with minimal finishing, this saw holds its own.

Good Points

• Dry-cut technology reduces sparks and burrs, making cuts cleaner and safer.
• Cermet-tipped blade lasts significantly longer than abrasive wheels, improving cost efficiency.
• Integrated ChipTank collects metal shavings to keep the workspace tidy.
• Powerful 13 amp motor with 3,700 RPM delivers consistent cutting power.
• Plunge lever allows fast and controlled plunge cuts with both hands on the saw.

Limitations

• The saw’s weight (13.7 lbs) can cause fatigue during prolonged use.
• Fixed bevel capacity at 0 degrees limits cutting angles.
• Lack of a brake system slows blade stopping time, posing a safety concern.
• Relatively short 15-foot cord may require extensions on larger sites.
• Handle could benefit from better vibration dampening for extended comfort.

Testing this saw alongside some coworkers and even letting a curious nephew observe the operation, I noticed that professionals appreciated the clean cuts and minimal cleanup, while beginners were impressed but warned about the saw’s weight and safety precautions. This tool excels at what it promises — efficient, clean metal cutting — but requires respect and care in handling to ensure smooth and safe operation.

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