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WEN 40421 Review

WEN 40421 Review

Looking for a dependable and powerful pole saw? The WEN 40421 could be the perfect fit. Designed to make light work of branches and limbs, this cordless pole saw is ideal for homeowners who want to prune their trees without having to call in a professional. But does it really deliver on its promises? In this comprehensive review, we’ll take a closer look at all the features and specs of the WEN 40421 to find out.

WEN 40421This is a cordless pole saw designed to tackle branches and limbs up to eight inches in diameter with ease. It features a 10-inch bar and chain, as well as an adjustable head that rotates up to 90 degrees for easy access to hard-to-reach spots.


  • Color: Multicolor
  • Blade Material: High Speed Steel
  • Power Source: Battery Powered
  • Special Feature: Brushless


The WEN 40421 is a tool for the job that gives you uncompromising power! It’s designed to effortlessly handle branches and limbs up to 8 inches in diameter, so you can maintain your yard with ease. It also features a variable speed throttle for precision cutting and an automatic oiling system to keep the chain lubricated while in use. Additionally, the saw has been designed with heavy-duty metal construction for added durability, so you can be sure it can take on whatever your garden throws at it.


The WEN 40421 is a great choice for homeowners in search of a dependable and powerful saw. It features a brushless motor, which provides more power and longer runtime than brushed motors. Additionally, the adjustable head can be rotated up to 90 degrees for access to hard-to-reach spots, while the variable speed throttle allows you to adjust the cutting speed as needed. The saw also comes with a 40V Max Li-ion battery that provides up to 1.5 hours of runtime and can be recharged using the included charger.

WEN 40421 User Manual

Having problem? Download WEN 40421 instructions.

Pros & Cons of WEN 40421

  • The shaft can extend from 7.1 ft to 10 ft in length
  • Pivot the head up to 30°
  • Accepts 2Ah and 4Ah 40V Li-Ion batteries
  • Less maintenance, longer lifespan

  • The battery is not interchangeable with the WEN chainsaw
  • The battery pack keeps slipping out in the middle of use

Buyer’s Guide

What is a Pole Saw?

A pole saw is a tool used for pruning and trimming trees. It consists of a long extension pole with a pruner or chainsaw attached to the end. This allows you to reach branches that are out of reach without having to use a ladder, making it much safer and more efficient than using traditional trimming tools. Pole saws come in various sizes and styles, so you can find one that is perfect for your needs.

What is a Pole Saw?

Many also feature adjustable heads that rotate up to 180 degrees, allowing you to reach even further into the tree canopy. Whether you’re looking for a professional grade or just something to tackle small jobs in your yard, investing in a good saw will definitely pay off in the long run. They are a great addition to any gardener or homeowner’s tool shed!

What kind of Pole Saws are available?

From electric models to large gas-powered units, pole saws come in a range of sizes and designs, enabling you to select the perfect tool for your needs.

Electric saws are great for smaller jobs around the home, like lopping small branches or clearing away overgrown foliage.

For larger jobs, you’ll want to consider a gas-powered saw that can reach up to 20 feet or more in height. If you’re looking for greater maneuverability than an electric model and enough power for light pruning tasks, then a cordless saw is the perfect option. No matter what type of pole saw you choose, make sure it has safety features like a chain brake and an anti-kickback system to keep you safe while operating it.

Gas powered

When it comes to power, gas-powered saws are the clear winner. Their powerful engines generate enough torque and speed to tackle larger jobs with ease. However, they tend to be more expensive and require more maintenance than electric models. Furthermore, they can be quite loud and smelly due to their emissions.

Electric (Corded)

In comparison, electric pole saws are relatively quiet and clean while still offering enough power for most light pruning jobs around the home. They’re also much easier to start and maintain than a gas model, making them great for beginners or casual gardeners who don’t want the hassle of a gas-powered unit. The downside is that electric models typically have shorter reach (up to 14 ft) and can’t handle larger tasks as easily.

Battery Powered

Finally, there are battery-powered saws which offer the convenience of cordless operation and plenty of power for light pruning tasks. They’re perfect for gardeners who need to work in tight spaces or want to move around easily without worrying about tripping over cords. However, they tend to be quite expensive and may not last as long as other types of pole saws due to shorter battery life.

Combination Saws

If you’re looking for a versatile saw that can handle both pruning and cutting tasks, then a combination pole saw might be the best option.

Combination Saws

Combination saws come with interchangeable heads so you can easily switch between a pole saw and chainsaw depending on your needs. They tend to be pricier than other types of pole saws, but they offer unparalleled flexibility and portability.

Manual Pole Saw

Finally, there are manual pole saws which are great for those who want a cost-effective and eco-friendly solution. These saws require no power source and rely on the strength of the user to make cuts. They’re most suitable for light pruning tasks with smaller branches, but can be tiring to use due to their manual operation. [1]

Lithium Ion Cordless Pole Saw

For a powerful and lightweight pole saw, lithium-ion models are perfect. They offer plenty of power for most tasks while still being easy to maneuver. Furthermore, they don’t require a power source so you can take them wherever you need to go. The downside is that their battery life may be shorter than other types of saws due to their high power output.

What pole saw will bring out the best in your tree care?

Pole saws are a great way to reach those hard-to-get areas of your garden and trim back overhanging branches. But they can vary in size, power, and features.

The key thing to consider when buying a saw is safety first. Look for models that have comfortable ergonomic handles and secure locking mechanisms that won’t let the extension slip while in use. Ensure it has an anti-kickback design so it won’t throw up debris as you work.

Finally, check out any additional features on offer such as cordless models that provide greater mobility or battery-powered designs that come with rechargeable batteries and longer running times.

How high will I need to cut?

Generally, electric models are designed for cutting heights up to 15 feet.

Gas-powered models can reach higher – typically up to 25 feet – so they’re ideal if you have large trees or high branches that need trimming.

How frequently will I be employing the saw?

If you’re only using the saw occasionally, then an electric model might be a better option. It’s lighter, quieter and cheaper to run than a gas-powered saw – plus it’s easier to maintain too.

How frequently will I be employing the saw?

However, if you’re going to be using it regularly or for more demanding jobs like cutting larger branches, then a gas-powered one will give you greater power and reach.

Do I have access to a power supply?

If you’re using an electric saw then you’ll need access to a power supply. Consider the length of your extension cord and make sure it will reach the areas you plan on cutting. Cordless models are becoming increasingly popular as they allow for greater mobility and freedom when trimming back branches in awkward places.

Do I possess the desire and capability to maintain this regularly?

Maintaining your pole saw is essential for its longevity and performance. Electric models require less regular upkeep than gas-powered ones, but both require oil changes and blade sharpening from time to time. If you’re not comfortable carrying out maintenance tasks on the saw yourself, then consider buying a model that includes a warranty or maintenance plan. That way, if something goes wrong then you’re covered!

All in all, finding the right saw for your needs starts with safety first, then think about what type of jobs you need it for and how often you’ll be using it. Finally, compare different models and decide which features are most important – that way you can find the perfect saw for your garden!

What size of limbs should I be pruning?

The thickness of the limbs will determine what type of saw you need. For thicker branches, you’ll want a more powerful saw with a sharper blade. However, for lighter jobs like trimming twigs and thin branches around your garden, an electric saw might be better suited to the task. Additionally, some models come with attachments that can help tackle heavier workloads such as chainsaws or even hedge trimmers!

Can I safely and confidently utilize a pole saw?

Depending on the type of pole saw you purchase, they are relatively easy to use and don’t require too much effort or skill.

If you want to be extra safe, it’s always recommended to read through your manufacturer’s operating instructions beforehand and wear appropriate safety gear such as gloves, face and eye protection when using the tool.

Additionally, always remember to inspect your tool before each use and make sure that all of its components are in good working order. Following these safety tips will ensure that you can enjoy the comfortable and safe operation of your pole saw for years to come!

What is my budget?

When budgeting for a pole saw, the key factor is that it aligns with your financial plan. Generally speaking, electric and battery-operated models tend to be more affordable than gas-powered ones. More expensive models often come with features such as adjustable handles and longer reach, whereas cheaper models may not offer these features. Ultimately, it’s up to you to decide what features are important enough for you to pay extra money for and which ones can be sacrificed in order to remain within your budget.

What is my budget?

As long as you have an understanding of your needs and wants when it comes to a pole saw then finding one that fits into both areas should be relatively straightforward. [2]

Additional Tips

When shopping for a pole saw, there are a few additional tips that might help you in your search:

  • Look for models with adjustable handles and reach so you can customize them to fit any job.
  • Check online reviews of the models you’re considering as they can give valuable insights into how well products perform.
  • Be sure to get a good warranty or maintenance plan so you know that if anything goes wrong, you’ll be covered.
  • Finally, make sure to read through the manufacturer’s instructions carefully before using the saw so that you can operate it safely and efficiently. With these tips in mind, finding the perfect pole saw for your needs should be easy!

Factors to Consider When Buying WEN 40421 Pole Saw

When it comes to buying a WEN 40421 pole saw, there are various factors to consider that can impact the overall performance and usability of the product. In this table, we compare some key indicators to help you make an informed decision.

Indicator Description Importance
Bar length The length of the saw blade High
Power source The type of power source used to operate the saw (e.g. electric, battery, gas) High
Weight The overall weight of the pole saw Medium
Extension length The maximum length the pole saw can extend to Medium
Cutting capacity The maximum diameter of branches the pole saw can cut through Medium
Price The cost of the pole saw Low
Brand reputation The reputation of the brand that manufactures the pole saw Low

Explanation to the Table:

  • Indicator: Refers to the variable being measured
  • Description: Describes what the indicator represents
  • Importance: Ranks the level of importance for the given indicator when making a purchase decision, with “High” being the most important and “Low” being the least important.
  • The table compares various factors that should be considered when purchasing a WEN 40421 pole saw.
  • The indicators listed in the table are not exhaustive, but rather serve as a starting point for evaluating the product.
  • The importance of each indicator may vary depending on individual needs and preferences.


How long does a battery last on a pole saw?

The average battery life for a pole saw varies depending on the model and size of the battery, but most batteries can last anywhere from 0.5-1 hour with regular use. Some premium models may offer additional features that increase the battery longevity even further. To get the best out of your saw, ensure to always check and maintain the battery regularly. This includes keeping it charged before each usage and ensuring connections are secure. Also keep in mind that cold weather can drastically reduce battery life so if you live in colder climates, consider investing in a quality lithium-ion battery to extend its lifespan. [3]

How do you maintain a pole saw?

Maintaining a pole saw requires regular maintenance and care to keep it in good working condition for years. To ensure your pole saw lasts, here are some tips for maintenance:

  • Make sure the battery is fully charged before using it – This ensures that the power level of your saw is consistent from start to finish.
  • Inspect the chain tension regularly – If the chain is too loose or too tight, it can cause wear and tear on both the bar and the motor.
  • Clean off any debris that accumulates on the bar or other components – Debris can slow down cutting performance and eventually lead to problems with the blade.
  • Sharpen the blade at least once a year – This prevents the blade from becoming dull and keeps it in good working order.
  • Lubricate the bar and chain often – This helps to reduce friction between the two components, which will extend the life of your saw. [4]

By regularly maintaining your saw with these simple tips, you’ll be sure to get years of reliable performance out of it.

How thick of a branch can an electric pole saw cut?

The electric pole saw can cut through branches up to a diameter of six inches. It has the capability to quickly and easily trim tree limbs, making it an ideal tool for landscaping and garden maintenance tasks. However, be sure not to overload the motor or use too much pressure on the branch as this may damage the saw or cause injury. Read the manufacturer’s instructions and follow them carefully for maximum safety and performance!

How do you take care of an electric pole saw?

Taking care of an electric pole saw is relatively easy and doesn’t require too much effort, but regular maintenance will help ensure that it keeps running properly and lasts as long as possible. The following steps should be taken to maintain your saw:

  • Always use eye protection when operating the pole saw.
  • Make sure to clean the blades after each use to remove dirt, dust, or other debris that may have built up on them during the cutting process.
  • Store your pole saw in a dry place where it won’t be exposed to moisture or extreme temperatures — an outdoor shed or garage is ideal.
  • Inspect the blade for any signs of wear or damage before each use. Replace the blade if it is damaged or worn down, as using a dull or broken blade can cause significant damage to the motor and other parts of the saw.
  • Check for loose screws, nuts, or bolts on a regular basis and tighten them if necessary.
  • Keep the motor clean by wiping off any excess oil or dirt that may have built up over time.
  • If you’re not going to be using the saw for an extended period of time (more than one month), make sure to drain any fuel from the tank before storing it away — this will help prevent corrosion and other problems in the future.
  • Make sure to follow all safety regulations when operating the saw and always wear protective gear.
  • Finally, it’s important to read the manufacturer’s instructions before operating the saw for the first time so that you know how to use it properly and safely. [5]

Following these simple steps will help ensure that your saw stays in good working order and lasts as long as possible. With the proper maintenance and care, an electric pole saw can be a great tool to have around the home or shop!

Is the WEN 40421 pole saw easy to use?

Yes, the WEN 40421 pole saw is designed to be easy to use. It features a lightweight design, weighing only 7 pounds, and a comfortable grip handle that reduces fatigue and improves control. Additionally, the saw’s telescoping pole can be adjusted to the user’s height, making it more comfortable to use.

How safe is the WEN 40421 pole saw to use?

The WEN 40421 pole saw is designed with safety in mind. It features a safety switch that prevents accidental startups and a blade cover that protects the chain when the saw is not in use. Additionally, the saw’s adjustable shoulder strap helps distribute the weight of the saw, reducing the risk of injury from strain or fatigue.

What type of maintenance does the WEN 40421 pole saw require?

To ensure optimal performance and longevity, the WEN 40421 pole saw requires some basic maintenance. This includes regularly checking the chain tension, lubricating the chain and bar, and cleaning the saw after each use. It’s also important to store the saw in a dry, cool place when not in use.

Can the WEN 40421 pole saw cut through hardwood branches?

Yes, the WEN 40421 pole saw is capable of cutting through hardwood branches up to 6 inches in diameter. However, it’s important to note that the saw’s cutting ability may be impacted by the type of wood and the angle of the cut. It’s always best to start with smaller branches and work up to larger ones to ensure optimal performance and safety.

What type of warranty does the WEN 40421 pole saw come with?

The WEN 40421 pole saw comes with a two-year warranty, which covers any defects in material or workmanship. Additionally, WEN offers a friendly customer support team that can assist with any questions or issues that may arise during use.

Can the WEN 40421 pole saw be used for commercial purposes?

While the WEN 40421 pole saw is designed for residential use, it can also be used for light commercial work. However, it’s important to note that the saw may not be able to handle heavy-duty cutting tasks or prolonged use. If you’re planning to use the saw for commercial purposes, it’s best to consult the manufacturer’s guidelines and consider investing in a more heavy-duty model.

Is the WEN 40421 pole saw compatible with other brand’s replacement parts?

No, it’s recommended to use WEN’s own replacement parts for the WEN 40421 pole saw. The saw is designed to work with specific parts, and using incompatible or third-party parts can potentially damage the saw or reduce its performance. Additionally, using non-WEN parts may void the saw’s warranty.

How do you assemble the WEN 40421 pole saw?

The WEN 40421 pole saw comes partially assembled, and the remaining assembly process is relatively simple. To assemble the saw, attach the pole to the saw’s motor unit, then attach the handle and shoulder strap. The saw also comes with a detailed instruction manual that provides step-by-step guidance on the assembly process.

What is the cost of the WEN 40421 pole saw?

The cost of the WEN 40421 pole saw can vary depending on the retailer and any promotions or discounts that may be available. However, as of the knowledge cutoff date of September 2021, the WEN 40421 pole saw is priced around $80 to $100.

What is the length of the warranty on the WEN 40421 pole saw battery?

The WEN 40421 pole saw does not come with a battery, as it is an electric saw that must be plugged into a power source. Therefore, there is no warranty associated with the battery.

Video Guide: WEN 4021 Electric 9 Feet Pole Saw For Cutting Tree Limbs


The WEN 40421 is a great choice for anyone looking to extend the reach of their pruning and trimming activities. With its lightweight design, long battery life, and powerful motor, it’s a versatile tool that makes difficult cutting jobs easier. It also has several safety features like an auto-lock chain break and an emergency stop switch, so you can feel secure when using it. If you’re in the market for a reliable cordless saw at an affordable price point, then the WEN 40421 is worth considering.

We hope this article has been helpful in determining whether this saw is the right choice for your needs! Now that you know all the features and benefits of this saw, start enjoying beautiful pruning jobs with ease. Happy cutting!


  1. https://www.chainsawsdirect.com/stories/288-How-to-Pick-the-Perfect-Pole-Saw.html
  2. https://www.popularmechanics.com/home/lawn-garden/g36579505/pole-saws/
  3. https://www.thewoodcuttersson.com/how-good-are-battery-operated-pole-saws/
  4. https://toolgramming.com/pole-saw-maintenance-and-storage/
  5. https://www.powerequipmentdirect.com/stories/288-How-to-Pick-the-Perfect-Pole-Saw.html