Bosch GKS 18V-57 Professional Circular Saw Review

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  • Portable, cordless circular saw with overheating protection
  • Easy, accurate adjustments for smooth, powerful cuts
  • 3,400 RPM speed perfect for professional applications
  • Intelligent Brake System enables quick stops
  • Durable aluminum base and bright LED work light
Bosch GKS 18V-57 Professional Circular Saw Review
Bosch GKS 18V-57 Professional Circular Saw Review

Description

Overall Performance

Bosch GKS 18V-57 Performance

The Bosch GKS 18V-57 model by none other than Bosch (a brand very, very well-known for manufacturing some of the most durable power tools with great ergonomics) is certainly a high-performing choice simply perfect for those serious about professional, fine craftsmanship.

This is one cordless saw that can give you the most accurate bevel cuts. A cordless saw like this features an optimal power-weight ratio with a depth cut capability and bevel capacity that are satisfactorily adequate.

It is a battery-powered cordless saw, after all, with a performance (i.e. sawing) rate that’s pretty fast. I mean a speed of 3,400 RPM implies serious, professional business. Even the runtime of the tool is sufficiently long. All thanks to the powerful 5.0 Ah batteries and motor of this 18-volt woodworking beast.

Choosing an established brand such as Bosch that utilizes such high-performing batteries means making the most of the convenience and rewards that are often a part of cordless saws.

Cutting Power

Bosch GKS 18V-57 Cutting Power

Can Bosch GKS 18V-57 cut through double sheets of, let’s say, 3/4 inches of a subfloor? Fortunately, yet not so surprisingly considering the manufacturer is Bosch, it can do that the most efficiently. In fact, in comparison to other standard or basic cordless saws, this professional-grade version offers superior cutting power.

The speed here is 3,400 RPM, which is surely more powerful than the corded varieties out there. Battery technology has been subjected to drastic improvement. And that’s how more and more cordless saws like these are becoming more and more powerful.

Agreed that there are even higher-powered cordless circular saws on the market (as high as 5,000 RPM). But keep in mind that the rotations per minute are indicative only of the cutting power and not the torque of the tool. For example, the worm drive saw has a lower RPM but it delivers more torque.

Back to Bosch GKS 18V-57, its cutting power/speed, no doubt, is the most suitable for all types of application. Be it on a scaffold or roof!

As for the maximum cutting depth in wood (90 degrees), it’s 57 millimeters (that would be 2.244 inches). And the maximum cutting depth in wood (45 degrees) is 39 millimeters or 1.53 inches.

Design / Build Quality

It’s a professional power tool, which means an efficient, robust design is a part of the mix. 

When talking about the design of just about any corded or cordless circular saw, the first thing that comes to mind is the handle ergonomics. In that case, the structure of the handle is not too thin nor is it too cramped or close together. At the same time, the angle of the handle is such that it’s super comfortable and convenient to hold.

Moving on to the weight and size of this thing. Is it a lightweight power tool? The weight is 7.26 pounds only and the product dimensions are 15.5 x 11.1 x 10.1 inches.

What about the diameter of the saw blade? The blade diameter is 6.496 inches (165 millimeters) while the saw blade bore diameter is 0.787 inches or 20 millimeters.

Also, not many know that this handheld or cordless circular saw is available in another version as well where the saw blade is mounted on the right-hand side.

But does the Bosch GKS 18V-57 Professional Cordless Circular Saw feel like a long-lasting power tool? How great is the build quality, right? To be honest, this unit is incredibly robust, meaning the shelf life of the product is quite impressive (years and years of sawing experience indeed).

Safety and Additional Features

One of the most amazing things about professional woodworking power tools like this Bosch cordless circular saw is that they feature high user safety. So you can get your work done the most efficiently, with complete user protection.

The safety features include retractable blade guards as well as blade locks. So the woodworking tool stops immediately, meaning the blade comes to a halt the same second you release that trigger switch.

Then you also get trigger safety in the sense that unintentional start-ups are out of the way. Along with molded handles outfitted with anti-slip rubberized grips for the most comfortable, secure hold during operation.

In addition to safety and standard features like depth and bevel adjustments, the cordless models, since they’re equipped with more recent and advanced technologies, consist of extra features that boost shelf life. In this case, it would be automatic shut-off to prevent overheating or overloading of the battery.

Some higher-end units also come with waterproof seals for much-needed resistance to water as well as dust. Some other additional features include automatic speed and torque adjustment for performance optimization depending on your workload.

Plus, let’s not forget about the added benefit of an illuminated work area with Bosch.

Additional information

Specification: Bosch GKS 18V-57 Professional Circular Saw Review

Power
Engine Speed (RPM)

3400

Voltage (V)

18

Power Source

Battery Powered

Brushless Motor

Yes

Depth of Cut - 90 Degrees (in)

2.244

Depth of Cut - 45 Degrees (in)

1.53

Blade Diameter (in)

6.496

Blade Location

Right

Cord Style

Cordless

Portability
Length (in)

15.51

Width (in)

11.14

Height (in)

10.16

Weight (pounds)

7.25

Shoe Material

Magnesium

Utility
Bevel Capacity (degrees)

45

Laser Guide

Yes

LED Lights

Yes

Dust Collection

Yes

Dust Blower

No

Dust Port

No

Usage

Beams & Timber

Money-back guarantee days

30

Warranty (Years)

2

Misc
Arbor Size (in)

0.787

Batteries Included

No

Batteries Required

Yes

Battery Cell Type

‎Lithium Ion

Brand

Bosch

Color

Blue

Model

GKS 18V-57

Videos

Videos: Bosch GKS 18V-57 Professional Circular Saw Review

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