Battery Hand Circular Saw Test - 06/2019

A battery-powered circular saw is a symbol for the revolution of the DIY tools. Thanks to the battery-powered circular saw, you will never have to worry about unnecessary cable clutter or too short cables again! We have tested 3 different brands of hand circular saws for you. Our test winner is the Metabo KS 18 LTX 57: The device is of high quality workmanship, enables easy handling and provides an extremely good cutting result. Our favourite with the test mark 10/10!

last modified: 15.09.2019, 10:47
Winner Best price winner
Our winner: Metabo KS 18 LTX 57 Bosch Professional GKS 18V-57 Einhell TE-CS 18/165 Li-Solo Power X-Change

Metabo

KS 18 LTX 57

Bosch Professional

GKS 18V-57

Einhell

TE-CS 18/165 Li-Solo Power X-Change
  • High quality workmanship
  • Handling
  • Safety and security
  • High quality workmanship
  • Safety and security
  • Battery of the Power X-Change family
  • Automatic switch-on
  • Very loud
  • Automatic switch-on

A high quality hand circular saw with a very good handling.

A high quality hand circular saw, which ensures a safe handling.

All in all a good hand circular saw with good sawing results.

Type of battery Lithium ion Lithium ion Lithium ion
Battery Capacity 2.0 Ah 5.0 AH 3.0 Ah
Saw blade diameter 165 mm 165 mm 165 mm
Handling
Cut Quality
Safety
Workmanship
Scope of delivery Instruction manual Rip fence, suction adapter, Instruction manual Instruction manual
Additional Warranty 3-year warranty with online registration - -
Quality of instructions Very Good Very Good Very Good
Voltage 18 V 18 V 18 V
Material Stainless steel, plastic Stainless steel, plastic Stainless steel, plastic
Width 19,5 cm 21,4 cm 17,5 cm
Height 24 cm 23,5 cm 26 cm
Depth 27,4 cm 29,2 cm 27 cm
Weight 2797 g 3334 g 2629
Special features - - Flashlight
LED light Battery indicator Battery indicator, flashlight Battery indicator, flashlight
Idling speed 4600 min-1 3400 min-1 4200 min-1
Cutting depth at 45° 43 mm 42 mm 35 mm
Cutting depth at 90° 57 mm 57 mm 54 mm
Max. volume 96 dB 93 dB 101 dB
Processing Very Good Very Good Good
Case included Yes Yes -
Test seal: Metabo KS 18 LTX 57, Rating 1
read review
Test seal: Bosch Professional GKS 18V-57, Rating 1.3
read review
Test seal: Einhell TE-CS 18/165 Li-Solo Power X-Change, Rating 1.7
read review
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*All prices include VAT (if applicable, extra charge for delivery. Check the particular online shop to find information about the availability. Changes of indicated prices since the last update remain reserved.

Metabo

KS 18 LTX 57

Test seal: Metabo KS 18 LTX 57, Rating excellent

The battery-powered circular saw KS 18 LTX 57 from Metabo is manufactured to a high quality standard. The device is easy to operate and has very good handling. Due to the automatic switch-on and the self-protection mode, safe handling of the machine is guaranteed. All in all, it makes fun to saw with a circular hand saw like this.

read review
  • The effects of noise can cause hearing loss, so you should wear hearing protection.
  • When working with wood and other materials, harmful dust can occur, so you should wear a dust mask.
  • During work, sparks may occur, splinters and swarf may cause loss of visibility. Therefore, you should wear protective goggles during work.
  • To get a perfect result, measure everything down to the last detail.
    Clean the machine after use to maintain the life of the machine.
 

Test procedure

Before the test, we defined practical requirements and the following test criteria:

  • Handling
  • Cut quality
  • Safety and security
  • Processing

In order to evaluate these criteria, we have defined several tests for the battery-powered circular saws. In the test, different boards of different thicknesses are sawn through. Meanwhile, handling, operation and safety are evaluated. The result of the cut is then evaluated for cleanliness and the cuts are measured for straightness. During the practical test, the volume is measured and the ergonomics assessed during continuous use. The devices are checked for self-protection and child safety as well as their functionality. During the test, safety gloves, hearing protection and privacy protection are worn.

All our test products have to saw through the same wood species and board thicknesses.

In order to rule out errors and to ensure the strain of everyday use, each test takes place in several rounds.

The test criteria are given percentages depending on their importance. The final score is then objectively calculated from the test criteria using an algorithm.

Product selection

Our product selection is based on observation of the current market. In addition to popular branded products, we also include insider tips in our selection. Criteria such as price and range of functions are an important factor for us. The test field is also determined by analysis and evaluation of customer reviews and external tests (e.g. Stiftung Warentest).

The devices are purchased anonymously or lent to us by the manufacturer. Retailers and manufacturers have no influence on the tests and our evaluation.

As soon as new relevant products come onto the market, our test field is extended by these. The new products go through the same test as the already tested devices.

Circular hand saws are now part of the basic equipment of every handyman. They are an almost indispensable tool for the precise cutting of wood and other materials. But how do circular hand saws work and what are the differences between conventional models and special models, like the diving saw or the battery-powered hand-held circular saw?

Hand circular saws are a special form of circular saws. These were originally designed to work with different materials such as wood, metal or plastic on a stationary surface and to separate the workpieces. Compared to the stationary circular saw there are some significant differences. When you are cutting workpieces with a stationary circular saw, the workpiece is guided over the worktable. Circular hand saws, on the other hand, are guided directly over the workpiece.

Metabo - KS 18 LTX 57
The circular hand saw from Metabo in operation.

How is the classic hand circular saw constructed?

The classic hand circular saw is often also called 'pendulum hood saw'. This name can be traced back to the protective device above the saw blade. The hood should ensure that flying sawdust does not cause any danger to you. The lower part of the saw blade is also covered and is only opened when you cut the workpiece. In most cases, the machine is operated via a switch attached directly to the handle of the circular hand saw.

Flexible working with a circular hand saw is also guaranteed by the base plate. The base plate can be individually adjusted, allowing you to adjust the angle of inclination. This allows even angled cuts. Some models also have a waste container and a connection for a vacuum cleaner. In this way, a large part of the flying sawdust can be collected during the processing.

The beginnings of the hand-held circular saw have their origins in the United States, although the first model had little in common with modern devices such as a battery-powered hand-held circular saw. In 1921, inventor Edmund Michael observed workers on a sugar cane field in Louisiana. He noted that working with a machete was sweaty and unproductive. In order to simplify the work in the fields, he began to develop a mechanical machete in which the saw blade would rotate. Only two years later, Edmund completed the first electric circular saw.

Within just a few years, many companies had found themselves recognising the great potential of the electric hand circular saw and were pushing ahead with their research. As early as 1928, the first die-cast aluminium model was produced. In the following decades, the company continued to work on improving the models and enabling precise processing of wood. This resulted not only in high-quality designs, but also in many different designs.

A lot has changed since the first steps with the mechanical machete. In addition to the usual hand-held circular saw, there are other models such as the battery-powered hand-held circular saw, allowing you to select the optimum tool for every application.

The most common variant of the hand circular saw is the classic version. Due to its saw blade protection it is often also called a pendulum hood saw. The classic hand-held circular saw is operated with the power of electricity. It is particularly suitable for coarse wood cuts, sawing squared timber as well as boards and for the cutting of wooden floors or dry screed.

Another type of hand circular saw is the so-called plunge saw. Compared to the conventional hand circular saw, you do not have to start working with a plunge saw at the edge of the material to be processed. Instead, you can start sawing directly at the workpiece. That is why the name is plunge saw. In addition, the plunge saw impresses with fine and precise wood blanks, which are required, for example, when you are cutting out cooking surfaces on worktops.

The mini hand circular saw is suitable for small and filigree work on wood. Like the normal hand circular saw, it is powered by electricity. The primary difference is in the cutting depth. This is much smaller, which supports precise work. Optical differences can also be identified. Most models are more like an angle grinder than a hand-held circular saw. In addition to wood, they are also suitable for processing other materials such as plastic, metal or tiles.

The last variant is the battery-powered circular saw. Since they are operated by a battery, the often annoying cable is not required. The cutting power of the battery-powered circular saw is nevertheless identical to that of the models powered by electricity. For this reason, it is particularly suitable for flexible working without access to power sources.

From time to time, the saw blade of a battery-powered circular saw must be exchanged because it becomes more and more blunt when used regularly. But how do you recognize when the saw blade has to be changed and how do you do this?

In addition to the fact that saw blades become blunt over time, there are other reasons for replacing them. You should consider changing the saw blade of your battery-powered circular saw if the blade is damaged, too much rust has build up or if you want to process other material with special saw blades.

You can change it yourself within a minute. To prevent the saw blade from rotating when the screw is removed, you should fix it first. For this you can use different tricks. On the one hand the saw blade can be fixed with pliers or screw clamps. The second is the better option because you have both hands free. The ideal method is to wedge the saw blade. All you have to do is insert a small piece of wood between the saw blade and the base plate. After loosening the screw, you can easily remove the saw blade and replace it with a new one. When you tighten the saw blade, make sure that the screw is actually tightened securely.

Whoever works with a circular hand saw should always be careful. If the tool is handled incorrectly, it can become a risk to your health. Before you start working, you should first make sure that all safety items included in the scope of delivery are actually attached to the battery-powered circular saw.

TE-CS 18/165 Li-Solo Power X-Change from Einhell
The circular hand saw from Einhell in operation.

Safety precautions are often taken when it comes to handling heavy equipment like circular saws. This also includes appropriate protective clothing. However, you should never wear gloves when working with a battery-powered circular saw. The risk of the gloves getting caught in the circular saw is too high and the whole hand could be injured in an accident. It is also important to ensure that jewellery such as necklaces or wrist chains are removed before work and that long hair is fixed tight before work. Therefore you should make sure that you cannot get caught in the saw.

When using a battery-powered circular saw, you must change the saw blades from time to time. In order to avoid accidents, the power supply should be switched off before changing the saw blades in order to prevent the machine from being switched on accidentally.

Compared to other electronic saws, hand circular saws have the advantage that they are particularly suitable for straight cuts. In order to cut large-sized wood panels, you should fix the panel to thick wooden strips on the floor. As a guide stop, you can use a straight board that you fasten to the wooden board using screw clamps. Then you only have to guide the battery-powered circular saw along the wooden board to make a straight cut.

Bosch Professional - GKS 18V-57
The circular hand saw from Bosch in operation.

You should always consider the cutting depth when you are working with a hand-held circular saw. If this is set incorrectly, there is a risk that the surface will be heavily damaged by the protruding teeth. Ideally, the cutting depth is only a few millimetres bigger than the workpiece to be machined.

If you still do not believe you can make straight cuts with your battery-powered circular saw, you can use additional tools. Special guide rails for hand-held circular saws make work much easier. The guide rails are prepared with rubber lips on the underside so that they cannot slip during sawing. So you only have to saw along the guide rail to have a straight cut.

From time to time, the saw blade of a battery-powered circular saw must be exchanged because it becomes more and more blunt when used regularly. But how do you recognize when the saw blade has to be changed and how do you do this?

In addition to the fact that saw blades become blunt over time, there are other reasons for replacing them. You should consider changing the saw blade of your battery-powered circular saw if the blade is damaged, too much rust has build up or if you want to process other material with special saw blades.

You can change it yourself within a minute. To prevent the saw blade from rotating when the screw is removed, you should fix it first. For this you can use different tricks. On the one hand the saw blade can be fixed with pliers or screw clamps. The second is the better option because you have both hands free. The ideal method is to wedge the saw blade. All you have to do is insert a small piece of wood between the saw blade and the base plate. After loosening the screw, you can easily remove the saw blade and replace it with a new one. When you tighten the saw blade, make sure that the screw is actually tightened securely.

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  • What current products are there?
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  • What tests are we going to run?
  • What is the test procedure?

When everything's settled, we'll bring the devices to us. For each product the test procedure, the measured values and product properties are documented in detail. We create photos and videos. We evaluate the results for you, summarize everything in a test report and calculate the test grade.

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