Choosing a circular saw for home and cottage: all the most important for a successful purchase

Nowadays, there is a wide variety of handheld circular saws available in the construction tools market. These models come in different designs, technical specifications, operational features, and prices. In this article, we will provide information about the different types and varieties of this tool, offer advice on choosing the best circular saw for home use, and present a list of the most popular models.

Principle of operation and application

The circular saw is an incredibly popular tool for both DIY enthusiasts and professional builders. It is no wonder, as this tool enables efficient cutting of large quantities of wood, chipboard, fiberboard, OSB, MDF, plywood, and more, with minimal physical effort required from the operator. By swapping out blades and adjusting the rotation speed, one can even tackle cutting plastic, slate, metal, and synthetic stone. Furthermore, cuts can be made in various directions, including lengthwise, crosswise, and at different angles to the material’s main surface.

Although there may be variations in design, the functionality of all circular saws is fundamentally the same – transferring power from the unit’s shaft to the cutting disk.

Types of circular saws

Nowadays, the local construction tools market provides customers with a vast selection of machinery for cutting various types of materials. These tools can be classified based on their design, purpose, and the type of power source they use. In this article, we will take a closer look at different types of circular saws available in the market.

Manual circular saw

This is a relatively small and robust instrument that is effectively employed by both DIY enthusiasts and experienced contractors to address a wide variety of projects. In order to make a precise incision, the operator maneuvers the saw in relation to the stationary material.

Handheld models can have different designs and cutting tools:

• for working with wood;
• for working with metal.

The ones for working with wood are intended for longitudinal and transverse sawing of wood, as well as cutting sheet woodworking products. They can be used with three types of cutting disks: toothed, with carbide metal fillings, with variable tooth and reduced kerf thickness, and universal multipurpose disks.

Manual metal circular saws are specifically designed for cutting steel sheets, cutting profiles, pipes, and non-ferrous metal products. They can be used with both toothed and abrasive disks. In their basic configuration, they are equipped with a toothed multi-purpose cutting tool.

Wood circular saw Metal circular saw

Before making a decision on which handheld circular saw to choose, it is important to determine the specific type of tool that is needed:

1. Household saws are affordable and easy to use. These models typically have lower power and limited functionality;
2. Semiprofessional models are versatile and can handle most complex tasks around the house. They have a powerful motor, but lack the advanced features of professional equipment;
3. Professional tools are known for their high power, durability, and functionality.

Advantages of manual models:

1. Convenient to use due to their lightweight and compact design;
2. High productivity;
3. Offers an optimal price/performance ratio.

1. There is a risk of injury;
2. Excessive noise and vibration.

The stationary circular saw consists of the following necessary components:

1. Steel base. Depending on the intended use, it can be either cast or prefabricated;
2. Electric motor;
3. Depending on its purpose, it can be either cast or prefabricated;
4. Protective cover;
5. Controls.

The main advantages of stationary circular saws are:

1. Low level of vibration;
2. Possibility to cut wide workpieces;
3. Adjustability;
4. Ability to connect a dust collector.

The drawback is the considerable weight and size of the device.

Table circular saw

These models are a compact version of stationary "round saws". They are ideal for completing various cutting tasks around the house involving wood and its byproducts. The cutting depth remains similar to that of most portable models.

1. Portability;
2. Comparatively light weight;
3. Capability to handle large sheet materials.

Many experts consider the excessive vibration of the material to be a drawback.

Submersible circular saws

The primary distinction between plunge-cut models and circular saws lies in the way the cutting tool interacts with the workpiece. In conventional circular saws, the material is pushed into the disk (or conversely, as in hand saws): in the case of plunge-cut saws, the disk is positioned above the base plate and lowered by the operator onto the workpiece. The plunge mechanism enables more accurate placement of the cutting tool in relation to the material being cut, enabling targeted cuts at any point in the material and creating grooves, channels, and the like. The plunge mechanism allows for greater precision in positioning the cutting tool relative to the material being cut.

1. High precision cutting;
2. Extensive range of functions and versatility of usage.
3. Inability to perform full-length longitudinal cuts on sheet materials;
4. Elevated price compared to manual models.

Cordless circular saws

Cordless circular saws are portable tools that are powered by a battery. They are commonly used in construction sites where access to a power source is limited. These saws are specifically designed for short-term usage, typically lasting between 15 to 60 minutes depending on the battery’s capacity.

1. Compact size;
2. Portability;
3. Ease of use.

1. Limited duration of uninterrupted functioning;
2. Expensive price tag.

Manufacturers incorporate power systems into their designs, with the power output determined by the level of usage:

• household appliances – up to 800 watts;
• universal devices – ranging from 800 to 1.2 kW;
• professional equipment – ranging from 1.2 to 5 kW.

Cutting depth

The size of the cutting disk used in a circular saw is directly related to this parameter. A larger disk allows for the processing of thicker and heavier workpieces. However, a larger cutting tool requires more torque to rotate at the necessary speed, which in turn necessitates a more powerful motor.

Based on this information, manufacturers design their models with electric motors of specific power, each of which is capable of supporting a specific cutting depth:

1. Household saws have a cutting depth of around 40-50 mm. They are primarily used for cutting sheet materials;
2. Universal saws have a cutting depth ranging from 50-60 mm. They are versatile and can be used for a wide range of tasks;
3. Professional saws can handle workpieces with a thickness of 65-140 mm.

When compared to an angle grinder, this particular tool offers numerous advantages:

1. Enhanced precision and quality of cuts;
2. Convenience during work;
3. Ability to make angled cuts;
4. Avoidance of sparks.

One downside of employing a circular saw to cut metal, in contrast to using a circular saw blade, is the higher cost of consumables.

Body material

When producing circular saw bodies, manufacturers utilize impact-resistant materials that can withstand high loads and temperatures. The following are among the most commonly used materials for this purpose:

1. Metal – often used in professional-grade equipment;
2. Heat-resistant plastic – known for its lightweight properties, making it ideal for household appliances;
3. A combination of metal and plastic – considered by experts to be an optimal choice. The metal increases the tool’s durability, while the plastic significantly reduces its weight.

Diameter and type of cutting disks

Accessories are the primary and consumable component of any circular tool. The productivity of the device and the quality of the cut depend on the quality, tooth design, and diameter of these accessories. Saw blades can be categorized in the following ways:

1. There are two types of saw blades: monolithic and carbide. Monolithic blades do not have napayeks and can have either a sharp or curved tooth. They can withstand multiple resharpenings and are commonly used for cutting wood;
2. Carbide blades, on the other hand, are soldered with carbide, which provides them with greater functionality and durability. However, they require professional sharpening on specialized equipment.

The outer diameter of saw blades can range from 130 to 250 mm. The maximum diameter of the tooling is determined by the dimensions of the protective cover of the device. Depending on the intended use, saw blades can come with 10, 12, 24, or 40 teeth.

Additional functions

The latest versions of "circulars" come with advanced features, with the most popular ones being:

1. A system is in place to maintain a consistent rotational speed. When the controller detects a decrease in shaft speed (for example, when entering a zone with thicker and denser material), the electronics automatically increase the speed using the device’s power reserve;
2. The soft start system reduces initial currents and decreases the load on the power supply. This allows the tool to gradually increase its speed, ultimately extending the lifespan of the gearbox and the tool itself;
3. If the motor windings overheat, the overload protection system will automatically cut off the power supply;
4. At the end of the sawing process, an electrodynamic brake halts the rotation of the tool. This feature enhances operator safety;
5. The sliding clutch prevents kickback and potential power system failures in the event of a disk jam;
6. An additional start button on the device provides protection against accidental start-up. The device can only be started when both start buttons are pressed simultaneously, making it nearly impossible to do accidentally;
7. With the spindle lock, tooling changes can be easily made using just one wrench;
8. The parallel stop and guide rail enable the operator to achieve high-quality edge-parallel straight cuts;
9. The spring-loaded guard effectively conceals the tooling, only releasing the saw blade when it makes contact with the workpiece;
10. By adjusting the idle speed, the operator can manually select the optimal process parameters for cutting specific materials.

When considering ergonomics, it is important to keep in mind that there are specific models of implements tailored for individuals who are left-handed. It is crucial to take note of the handles, as they can come in various shapes such as a staple, straight, or mushroom-like. Regardless of the chosen shape, the handles should always be equipped with non-slip pads.

Rating of the best manufacturers of circular saws

It is quite understandable what a circular saw is. So, which model should be chosen for domestic purposes? The response to this query will be provided in the form of a ranking of the most sought-after models across various price ranges.

Budget models

Model	Features
	Zubr ZPD-900

The Zubr ZPD-900 is a compact and lightweight model designed for occasional use in households. With its 900 W motor, it is capable of processing wood and sheet materials, providing a cutting depth of 45 mm. It can also handle an angled cut of up to 45° with a tooling diameter of up to 140 mm. The spindle speed of this model is 4500 rpm.

Highlighted Features: the cutting depth and platform rotation can be adjusted smoothly, it also has an additional handle, and the option for stationary installation. Safety is ensured with the simultaneous sliding of two protective covers.

The average price for this product is 3 thousand rubles.

1. Ergonomics;
2. Lightweight and compact size;
3. Ability to adjust the cutting depth and angle of the platform;
4. Affordability.

This is an excellent choice for occasional use in home repairs and construction projects. The Bort BHK-160U circular hand saw is powered by a 1200W motor, allowing you to work with 165mm diameter accessories. It has a cutting depth of 55mm and 32mm at a 45° angle. The disc rotates at a speed of 5300rpm.

Highlighted Features: adjustable cutting depth and platform rotation.

Accessories: parallel guide, spare brush set, replacement key for disk, and wood cutting saw blade. Weight – 3.5 kg.

Average price – 3200 rubles.

1. High power;
2. Great equipment;
3. Low cost.

This is an exceptional model with excellent technical features. The 1600 W motor ensures high productivity when cutting materials up to 65 mm thickness. The tooling has a rotational speed of 5000 rpm and a maximum diameter of 190 mm.

Features include a depth of cut adjustment mechanism, laser pointer, and the ability to connect to an external dust collector or vacuum cleaner. It comes with a parallel stop. Weight – 4.8 kg.

Average price – 4.5 thousand rubles.

1. High power;
2. Incorporation of a laser pointer.
3. No ability to cut at an angle;
4. Lack of motor speed adjustment;
5. Inadequate equipment.

Medium price segment

Model	Features
	Bosch PKS 40

The Bosch PKS 40 is an ergonomic and lightweight circular saw model from a well-known manufacturer. It is equipped with a motor power of 850W, which is enough to easily handle wood and its derivatives with a thickness of 40mm. The cutting depth at an angle of 45° is 26mm. This model uses a tooling with a maximum diameter of 130mm, and its rotational speed is 4200rpm.

However, the functionality of this circular saw is limited by the mechanisms for adjusting the depth of cut and fixed rotation of the platform.

Accessories included with the Bosch PKS 40 are a parallel stop and a Speedline Wood carbide saw blade. The saw itself weighs 2.4kg.

On average, the price is 6 thousand rubles.

1. Provides a clean and precise cut;
2. Ensures high cutting accuracy;
3. Has a low weight and compact size.

However, it has the disadvantage of having limited functionality.

This handheld circular saw is powerful enough for most home and cottage repair tasks. It is equipped with a 2.2 kW motor that can effortlessly handle wood up to 85 mm thick, using a 235 mm diameter blade. The maximum spindle speed is 4500 rpm.

Its notable features include an angled cutting mechanism and the ability to adjust the depth of cut.

The accessories included are carbide tooling, a key for replacing the blade, and a guide. The saw weighs 8.5 kg.

It is available at an average cost of 7300 rubles.

1. Boasts a high-powered engine;
2. Capable of working with large saw blades;
3. Comes with a decent set of accessories.

However, it lacks advanced functions.

A lightweight, low-noise, and ergonomic model that offers excellent performance. It is equipped with a 1350 W motor, providing a maximum spindle speed of 5500 rpm. The saw blade diameter is 184 mm, allowing for a depth of cut of 65 mm. At a 45° angle, the depth of cut is 42 mm.

Key features include an angled cutting mechanism and an adjustable depth of cut with a range of up to 48°.

Accessories for this model include carbide tooling, a wrench, an adapter for connecting to an external dust extraction system, and a parallel stop. Additionally, it can be equipped with a case for convenient storage. The weight of the tool is 3.7 kg.

The average cost of this model is 8100 rubles.

1. Ergonomics
2. Low weight
3. Clean cut
4. High reliability

One disadvantage of this model is its limited functionality.

Premium models

Model	Features
	DeWALT DCS576N

The DeWALT DCS576N is a powerful cordless model designed for maximum autonomy in repair and construction work. It features a motor power of 1500 watts and a cutting depth of 67 mm. With a maximum diameter of the disk at 190 mm, it ensures excellent cutting quality thanks to its high spindle speed of 5800 rpm.

Key features of the DeWALT DCS576N include depth of cut and base rotation adjustment at 45°.

Accessories provided with the DeWALT DCS576N include a saw blade, guide, vacuum cleaner adapter, and wrench. It weighs 3.7 kg.

The average cost of the DeWALT DCS576N is 14.5 thousand rubles.

1. Autonomy;
2. Good power.

A reliable and functional professional circular saw from a reputable brand is equipped with a powerful 1300 W motor capable of delivering high-quality cuts and a maximum depth of 56 mm at a speedy rate of 5200 rpm.

Featuring an adjustable depth of cut and a 48° base rotation, this saw provides versatility and precision. It also includes a soft start feature, electronic power unit protection, and an electromechanical motor braking system. Additionally, this model offers smooth speed control and the option to connect a vacuum cleaner for a cleaner workspace. The kit includes a key for easy accessory replacement and it has a lightweight design, weighing only 4.1 kg.

The average price of this circular saw is 19 thousand rubles.

1. Impressive technical specifications.
2. Extensive range of functions.
3. Lightweight and easy to handle.

No disadvantages have been found.

An efficient model renowned for its versatility and reliable design, capable of tackling a wide range of tasks. With a motor power of 1400W and a spindle speed of 6250rpm, it boasts an impressive maximum tooling size of 165mm and a cutting depth of 57mm.

Key features of this model include its plunge mechanism, allowing for cuts to be made from any point, as well as an adjustable cutting depth and a 48° base rotation. Additional options include a soft start feature, electronic power protection, smooth speed control, and compatibility with an external dust collector. Weighing in at 4.7kg, it provides a well-rounded package.

With an average cost of 31100 rubles, this model offers excellent value for money.

1. Highest cutting quality
2. Wide range of functions
3. Precise cutting when using guides
4. Comfortable handle
5. Easy accessory replacement
6. Limited 1-year warranty
7. Tight vacuum cleaner connector
8. An adjustment mechanism for the tilt angle that is not comfortable;
9. An expensive price point.

Selection tips

Wrapping up, experts have provided the following recommendations for selecting a circular saw for domestic use:

1. For occasional and non-professional tasks, opt for models with a power unit capacity ranging from 850 W to 1.2 kW;
2. If you require a circular saw for home repairs and construction projects, consider models with basic features, a motor power of 1.2 to 2 kW, and a minimum cutting depth of 60 mm;
3. For professional builders, it is advisable to choose the most durable models with an engine power of at least 2 kW, a cutting depth exceeding 60 mm, and a speed of 5.5 thousand revolutions per minute.