What are the electric hand saw cordless?

Introduction to Cordless Electric Hand Saws

Cordless electric hand saws have revolutionized the way professionals and DIY enthusiasts approach cutting tasks. These tools offer the convenience of portability, freedom from power cords, and often, powerful performance that rivals their corded counterparts. With advancements in battery technology, particularly the development of lithium-ion batteries, cordless electric hand saws have become essential tools for carpenters, builders, and hobbyists alike. In this report, we will explore the different types of cordless electric hand saws, key brands, popular models, and the features that make them stand out.

Types of Cordless Electric Hand Saws

Cordless electric hand saws come in various types, each designed for specific cutting tasks. The most common types include:

1. Cordless Circular Saws: These are the most versatile type of hand saws, capable of making straight cuts through wood, metal, and plastic. They are ideal for framing, roofing, and general carpentry.
2. Cordless Reciprocating Saws: Also known as “saws all,” these are used for demolition and remodeling tasks. They are excellent for cutting through wood, metal, and even masonry.
3. Cordless Jigsaws: These are used for making curved and intricate cuts in wood, metal, and plastic. They are popular for detailed work such as cutting out shapes in wood or making decorative edges.
4. Cordless Chainsaws: Designed for cutting through thicker branches and logs, these are typically used for outdoor tasks like pruning trees or cutting firewood.
5. Cordless Mitre Saws: These are used for making precise crosscuts and miters in wood. They are commonly used in trim work, molding, and framing.
6. Cordless Tile Saws: These are specialized saws designed for cutting tiles and other hard materials. They are equipped with water reservoirs to cool the blade and reduce dust.

Key Brands and Popular Models

Several brands have established themselves as leaders in the cordless electric hand saw market, offering a range of models that cater to different needs and preferences. Below are some of the most notable brands and their popular models.

1. DeWalt

DeWalt is a well-known name in the power tools industry, recognized for its durable and reliable tools. The brand offers a wide range of cordless electric hand saws that are designed for professional use.

• DeWalt DCS570B 7-1/4″ 20V MAX Circular Saw: This model features a powerful brushless motor that provides 5200 RPM, allowing for fast and accurate cuts. It has a cutting capacity of 2-9/16 inches at 90 degrees, making it ideal for framing and roofing tasks.
• DeWalt DCS367B 20V MAX XR Brushless Compact Reciprocating Saw: This reciprocating saw is compact and lightweight, making it perfect for cutting in tight spaces. It features a variable speed trigger and a 1-1/8 inch stroke length for efficient cutting.
• DeWalt DCS331B 20V MAX Jigsaw: This jigsaw offers a 4-position orbital action for faster cuts in various materials. It also has an adjustable shoe that provides stability and durability during cutting.

2. Makita

Makita is another top brand known for its innovative and high-performance tools. The brand’s cordless electric hand saws are popular among professionals and DIY enthusiasts for their reliability and advanced features.

• Makita XSS02Z 18V LXT Lithium-Ion Cordless Circular Saw: This model features a 6-1/2 inch blade that provides a cutting capacity of 2-1/4 inches. It has a powerful motor that delivers 3700 RPM, making it suitable for a wide range of cutting tasks.
• Makita XRJ05Z 18V LXT Lithium-Ion Brushless Cordless Recipro Saw: This reciprocating saw features a brushless motor that delivers 0-3000 strokes per minute, allowing for fast and efficient cutting. It also has a variable speed trigger for added control.
• Makita XVJ03Z 18V LXT Lithium-Ion Cordless Jigsaw: This jigsaw offers a 3-orbital setting plus straight cutting for versatility in a wide range of materials. It also features a tool-less blade change system for quick and easy blade changes.

3. Bosch

Bosch is a leading manufacturer of power tools, known for its high-quality and precision-engineered products. The brand’s cordless electric hand saws are designed to deliver exceptional performance and durability.

• Bosch CCS180B 18V 6-1/2″ Circular Saw: This circular saw features a 6-1/2 inch blade and a powerful motor that delivers 3900 RPM. It has an ergonomic design that provides comfort during extended use.
• Bosch GSA18V-125K14 18V EC Brushless 1-1/4 In.-Stroke Multi-Grip Reciprocating Saw Kit: This reciprocating saw features a brushless motor that provides longer runtime and increased durability. It also has a multi-grip design that allows for multiple hand positions for improved comfort and control.
• Bosch JS120BN 12V Max Cordless Jig Saw: This jigsaw is designed for precision cutting in a variety of materials. It features a 3-stage orbital action for smooth cuts and a compact design for easy maneuverability.

4. Milwaukee

Milwaukee is known for its high-performance and durable power tools. The brand’s cordless electric hand saws are designed to meet the needs of professionals in demanding work environments.

• Milwaukee 2730-20 M18 Fuel 6-1/2″ Circular Saw: This model features a brushless motor that delivers 5000 RPM, providing fast and accurate cuts. It also has a magnesium shoe for increased durability and reduced weight.
• Milwaukee 2719-20 M18 FUEL Hackzall Reciprocating Saw: This reciprocating saw is designed for one-handed use and features a brushless motor that delivers 0-3000 strokes per minute. It also has a compact and lightweight design for easy handling.
• Milwaukee 2445-20 M12 Jig Saw: This jigsaw is designed for precision cutting and features a 3/4 inch stroke length for smooth cuts. It also has a hybrid grip design that provides increased control and comfort.

5. Ryobi

Ryobi is a popular brand among DIY enthusiasts, offering a range of affordable and reliable power tools. The brand’s cordless electric hand saws are known for their ease of use and versatility.

• Ryobi P507 18V One+ 6-1/2 Inch Cordless Circular Saw: This circular saw features a 6-1/2 inch blade and a powerful motor that delivers 4700 RPM. It has an ergonomic handle for increased comfort during use.
• Ryobi P516 18V One+ Reciprocating Saw: This reciprocating saw features a variable speed trigger and a 1-inch stroke length for efficient cutting. It also has a pivoting shoe for increased stability during cutting.
• Ryobi P5231 18V One+ Orbital Jig Saw: This jigsaw features a 4-orbital setting for increased versatility in cutting. It also has a tool-less blade clamp for quick and easy blade changes.

Features to Consider When Choosing a Cordless Electric Hand Saw

When choosing a cordless electric hand saw, there are several key features to consider to ensure that you select the right tool for your needs. These features include:

1. Battery Life: The battery life of a cordless saw is crucial, especially for extended use. Look for models with long-lasting lithium-ion batteries that offer a good balance between runtime and charging time.
2. Blade Size and Type: The size and type of blade determine the material and thickness that the saw can cut. Make sure to choose a blade that is suitable for the tasks you will be performing.
3. Motor Power: The power of the motor affects the speed and efficiency of the saw. Brushless motors are generally more efficient and have a longer lifespan compared to brushed motors.
4. Ergonomics: The design and weight of the saw should be comfortable to use, especially for extended periods. Look for models with ergonomic handles and lightweight designs.
5. Safety Features: Safety features such as blade guards, lock-off switches, and electric brakes are important to prevent accidents and ensure safe operation.
6. Versatility: Some models offer multiple cutting modes or adjustable settings that allow for greater versatility in different materials and tasks.

Advances in Battery Technology

One of the most significant developments in cordless electric hand saws is the advancement in battery technology. The shift from traditional nickel-cadmium (NiCad) batteries to lithium-ion (Li-ion) batteries has greatly enhanced the performance and efficiency of these tools. Lithium-ion batteries are lighter, charge faster, and have a longer runtime compared to their predecessors. Additionally, they have a lower self-discharge rate, meaning they retain their charge longer when not in use.

Modern lithium-ion batteries also offer higher voltage options, such as 18V, 20V, and even 40V, providing more power and allowing for longer and more demanding tasks. This increase in power has enabled cordless saws to rival their corded counterparts in terms of performance, making them suitable for heavy-duty applications.

1. Extended Runtime

The extended runtime provided by lithium-ion batteries is crucial for professionals who need to use their tools for long periods without interruption. Many brands offer battery packs with higher ampere-hour (Ah) ratings, such as 4.0Ah, 5.0Ah, or even 9.0Ah, which significantly extends the time the saw can be used before needing a recharge.

For example, the DeWalt DCS570B 7-1/4″ 20V MAX Circular Saw is compatible with DeWalt’s 20V MAX XR batteries, which come in various capacities. A 5.0Ah battery can provide enough power for up to 100 crosscuts in 2×4 lumber on a single charge, making it ideal for construction sites where power outlets may not be readily available.

2. Fast Charging

Fast charging technology has also made cordless electric hand saws more convenient to use. Many brands now offer rapid chargers that can replenish a battery’s charge in a fraction of the time it used to take. For instance, the Makita X2 LXT Lithium-Ion Dual Port Rapid Optimum Charger can charge two 18V LXT batteries simultaneously in just 45 minutes. This means less downtime and more productivity, especially on job sites where time is of the essence.

3. Battery Compatibility

Another advantage of modern cordless electric hand saws is the compatibility of batteries across different tools within the same brand’s ecosystem. For example, if you own multiple tools from the Milwaukee M18 series, you can use the same M18 battery across all these tools, whether it’s a circular saw, drill, or reciprocating saw. This not only saves money but also reduces the need to carry multiple batteries and chargers.

Brushless Motor Technology

The introduction of brushless motor technology in cordless electric hand saws has further enhanced their performance and durability. Unlike traditional brushed motors, which use carbon brushes to transfer electrical current, brushless motors use electronic commutation to generate power. This results in several benefits:

1. Increased Efficiency

Brushless motors are more efficient than brushed motors because they generate less friction and heat during operation. This increased efficiency translates to longer runtime per battery charge, which is especially important in cordless tools. For example, the Makita XRJ05Z 18V LXT Lithium-Ion Brushless Cordless Recipro Saw features a brushless motor that delivers up to 50% more runtime per charge compared to models with brushed motors.

2. Longer Lifespan

The lack of carbon brushes in brushless motors means there is less wear and tear on the internal components, leading to a longer lifespan for the tool. This makes brushless cordless electric hand saws a more cost-effective investment in the long run, as they require less maintenance and replacement.

3. More Power and Torque

Brushless motors can deliver more power and torque compared to brushed motors of the same size. This is because they are more efficient at converting electrical energy into mechanical power. As a result, brushless cordless saws can handle more demanding tasks with ease. The Milwaukee 2730-20 M18 Fuel 6-1/2″ Circular Saw, for instance, features a brushless motor that delivers 30% more power and 2x more cuts per charge compared to its brushed counterparts.

Advanced Features in Cordless Electric Hand Saws

Modern cordless electric hand saws are equipped with a range of advanced features that enhance their usability, safety, and precision. These features cater to both professionals and DIY enthusiasts, ensuring that the tools can handle a variety of tasks with ease.

1. Electronic Brakes

Many cordless electric hand saws now come with electronic brakes, which stop the blade quickly when the trigger is released. This feature not only improves safety by reducing the risk of accidental cuts but also increases efficiency by minimizing the downtime between cuts. The Bosch CCS180B 18V 6-1/2″ Circular Saw is equipped with an electronic brake that stops the blade within seconds, providing an added layer of safety during use.

2. LED Work Lights

LED work lights are becoming a standard feature in cordless electric hand saws. These lights illuminate the cutting area, making it easier to see the cutting line and work accurately in low-light conditions. For example, the Ryobi P507 18V One+ 6-1/2 Inch Cordless Circular Saw features an integrated LED light that enhances visibility, ensuring precise cuts even in dimly lit areas.

3. Variable Speed Control

Variable speed control allows users to adjust the speed of the saw to match the material and cutting task. This feature is particularly useful in reciprocating and jigsaws, where different materials require different cutting speeds for optimal results. The Makita XVJ03Z 18V LXT Lithium-Ion Cordless Jigsaw offers variable speed control with a range of 0-2600 strokes per minute, allowing for precise control over the cutting process.

4. Tool-Less Blade Change

Changing blades on cordless electric hand saws has become easier with the introduction of tool-less blade change systems. This feature allows users to quickly and easily swap out blades without the need for additional tools, saving time and reducing frustration. The DeWalt DCS331B 20V MAX Jigsaw features a keyless blade clamp that enables quick and easy blade changes, making it more convenient to switch between different cutting tasks.

5. Bevel Adjustments

Many cordless circular saws now offer bevel adjustment features, allowing users to make angled cuts with precision. This is especially useful in woodworking and framing projects where angled cuts are required. The Milwaukee 2730-20 M18 Fuel 6-1/2″ Circular Saw features an adjustable bevel range of up to 50 degrees, providing flexibility for various cutting applications.

Innovations in Cordless Saw Blades

The performance of cordless electric hand saws is not only determined by the power of the motor but also by the quality of the blade. Advances in blade technology have led to the development of specialized blades that enhance cutting efficiency, durability, and precision.

1. Carbide-Tipped Blades

Carbide-tipped blades are designed to stay sharp longer and provide cleaner cuts compared to traditional steel blades. These blades are especially useful for cutting through tough materials such as hardwood, metal, and composite materials. The DeWalt DCS570B 7-1/4″ 20V MAX Circular Saw is compatible with carbide-tipped blades, making it ideal for heavy-duty cutting tasks.

2. Multi-Material Blades

Multi-material blades are designed to cut through a variety of materials, including wood, metal, plastic, and masonry. These blades are versatile and eliminate the need to switch blades when cutting different materials. The Bosch GSA18V-125K14 18V EC Brushless Reciprocating Saw is compatible with Bosch’s line of multi-material blades, allowing for seamless transitions between different cutting tasks.

3. Thin Kerf Blades

Thin kerf blades are designed to reduce the amount of material removed during cutting, resulting in faster cuts and less strain on the motor. These blades are particularly beneficial for cordless saws, as they help extend battery life by reducing the power required for each cut. The Makita XSS02Z 18V LXT Lithium-Ion Cordless Circular Saw is equipped with a thin kerf blade that enhances cutting efficiency and prolongs battery runtime.

Cordless Electric Hand Saws for Specific Applications

Cordless electric hand saws are used in a wide range of applications, from construction and remodeling to DIY projects and outdoor tasks. Understanding the specific needs of these applications can help users choose the right saw for the job.

1. Construction and Framing

In construction and framing, cordless circular saws are essential for cutting lumber, plywood, and other building materials. These saws need to be powerful, durable, and capable of making precise cuts quickly. The DeWalt DCS570B 7-1/4″ 20V MAX Circular Saw is a popular choice among professionals in this field due to its high cutting capacity and reliable performance.

2. Demolition and Remodeling

For demolition and remodeling tasks, cordless reciprocating saws are the go-to tool. These saws are ideal for cutting through wood, metal, and other materials in tight spaces or hard-to-reach areas. The Milwaukee 2719-20 M18 FUEL Hackzall Reciprocating Saw is designed for one-handed use, making it perfect for demolition tasks where precision and control are required.

3. Woodworking and Detailed Cutting

Cordless jigsaws are commonly used in woodworking and detailed cutting applications. These saws are capable of making curved cuts, intricate designs, and decorative edges in wood and other materials. The **Makita XVJ03Z 18V LXT Lithium-Ion Cordless Jigsaw** is highly regarded in woodworking circles for its smooth operation, variable speed control, and ability to handle intricate cuts with precision.

4. Outdoor and Landscaping Tasks

For outdoor and landscaping tasks, such as cutting tree branches, pruning, or shaping wood for garden projects, cordless chainsaws and reciprocating saws are often used. These tools need to be powerful enough to cut through tough wood while remaining portable and easy to handle. The Greenworks 20312 40V 16-Inch Cordless Chainsaw is a popular choice among gardeners and landscapers due to its robust cutting ability, long battery life, and relatively quiet operation compared to gas-powered chainsaws.

5. DIY and Home Improvement Projects

For DIY enthusiasts and home improvement tasks, versatility and ease of use are key. Cordless multi-tools, such as the DeWalt DCS355D1 20V XR Oscillating Multi-Tool, offer a wide range of applications, from cutting and sanding to scraping and grinding. This makes them ideal for various home projects, such as installing flooring, trimming door frames, or making quick adjustments to furniture.

Environmental Considerations

As environmental awareness continues to grow, manufacturers of cordless electric hand saws are increasingly focusing on sustainability. This involves not only improving the energy efficiency of their tools but also adopting more environmentally friendly practices in production and packaging.

1. Energy Efficiency

The use of brushless motors and advanced battery technology in cordless saws has significantly improved their energy efficiency. These tools now consume less power while delivering more output, which not only extends battery life but also reduces the overall energy consumption. The Ryobi P508 18V One+ Brushless 7-1/4″ Circular Saw is an example of an energy-efficient tool that offers high performance while minimizing power use.

2. Sustainable Materials

Some manufacturers are also exploring the use of sustainable materials in their tools and packaging. For example, brands like Makita and Bosch have started using recycled materials in their tool casings and are reducing plastic in their packaging. This shift towards sustainability is a positive trend that aligns with the growing demand for eco-friendly products.

3. Battery Recycling Programs

Another important aspect of environmental consideration is the disposal of batteries. Lithium-ion batteries, while efficient, need to be disposed of properly to avoid environmental harm. Many brands, such as DeWalt and Milwaukee, offer battery recycling programs that encourage users to return their old batteries for proper recycling, ensuring that harmful materials are safely handled.

Future Trends in Cordless Electric Hand Saws

The future of cordless electric hand saws is likely to be shaped by further advancements in technology, increased focus on user safety and comfort, and the growing demand for sustainable and eco-friendly tools.

1. Smart Technology Integration

One emerging trend is the integration of smart technology into cordless electric hand saws. Some brands are already incorporating features such as Bluetooth connectivity, allowing users to monitor tool performance, battery life, and maintenance schedules through a smartphone app. The Milwaukee ONE-KEY system, for instance, enables users to customize tool settings, track tool locations, and receive alerts about maintenance needs, enhancing both productivity and tool management.

2. Improved Ergonomics

Ergonomics will continue to be a key focus, with manufacturers designing tools that are not only powerful but also comfortable to use for extended periods. This includes lighter designs, better handle grips, and vibration-reducing features that minimize user fatigue. For example, the Bosch GKS18V-25GC 18V 7-1/4″ PROFACTOR Circular Saw is designed with user comfort in mind, featuring an ergonomic handle and reduced vibration for better control and less strain during use.

3. Enhanced Safety Features

Safety will remain a priority, with ongoing innovations aimed at reducing the risk of accidents. Future cordless electric hand saws may include more advanced safety features, such as automatic shut-off sensors, enhanced blade guards, and improved electronic braking systems. These features will help protect users while maintaining the tool’s performance and efficiency.

4. Continued Battery Innovation

Battery technology is expected to continue evolving, with the development of more powerful, longer-lasting batteries. Solid-state batteries, for instance, are a promising technology that could potentially offer even greater energy density, faster charging times, and longer lifespans than current lithium-ion batteries. This would further enhance the performance and convenience of cordless electric hand saws, making them even more appealing to both professionals and DIY enthusiasts.

Conclusion

Cordless electric hand saws have evolved significantly over the past few years, driven by advancements in battery technology, motor efficiency, and user-friendly features. Brands like DeWalt, Makita, Milwaukee, Bosch, and Ryobi have led the way in innovation, offering a wide range of models tailored to different applications, from heavy-duty construction to precise woodworking.

The shift towards brushless motors and the adoption of lithium-ion batteries have not only enhanced the performance and runtime of these tools but also made them more reliable and durable. Modern cordless saws are equipped with features such as electronic brakes, LED work lights, variable speed control, and tool-less blade changes, all of which contribute to their versatility and ease of use.

As technology continues to advance, the future of cordless electric hand saws looks promising. With the integration of smart technology, improved ergonomics, enhanced safety features, and ongoing innovations in battery technology, these tools will become even more efficient, convenient, and environmentally friendly.

Whether you are a professional contractor, a DIY enthusiast, or a homeowner looking to tackle home improvement projects, there is a cordless electric hand saw that meets your needs. As the market continues to grow and evolve, users can expect to see even more powerful, efficient, and versatile tools in the years to come.