Perhaps more common than the tool’s technical name of reciprocating saw is the name Sawzall. This common nickname is a result of the popularity of the first reciprocating saw invented by Milwaukee in 1951. While the names are different, the tools are the same. From breaking down nail-filled pallets to cutting out old cast-iron plumbing, a reciprocating saw can tackle a variety of tasks and has a blade specifically designed for each and every one. Because of its unique design and immense power, a reciprocating saw is perfect for cuts in hard-to-reach places that would be impossible with any other saw.
Reciprocating Saw vs. Jigsaw
Though both a reciprocating saw and a jigsaw feature a reciprocating, interchangeable blade, these saws serve vastly different purposes. While there is some overlap to what the saws can achieve, jigsaws are typically reserved for more precise work than reciprocating saws. This is because the design of both the jigsaw and its blades offer more control, while the design of a reciprocating saw prioritizes power and maneuverability.
Parts of a Reciprocating Saw
Reciprocating saws have many specific features that set them apart from other types of saws.
When holding a reciprocating saw, the operator places the dominant hand on the handle and the other on the front grip. A firm grip is necessary to hold the powerful saw steady.On the handle is a variable speed trigger that allows for more control when cutting.Interchangeable blades slide into the end of the saw via a blade release. Some older models may feature a manual chuck, but most modern saws feature a quick-release mechanism.At the base of the blade is the shoe, which rides against the material being cut. This shoe can be adjusted to allow different parts of the blade to cut the material, allowing the operator to get more life out of each blade.Below the handle is the power supply. While corded reciprocating saws are still available, many saws are now cordless, which can offer supreme mobility without a drastic sacrifice of power.On some saws, there may also be a dial for orbital action, which controls how aggressively the blade attacks the material.Some newer saws feature a work light to illuminate the material being cut.
What Blade to Use
One of the most noteworthy features of a reciprocating saw is its ability to quickly change blades to complete a variety of tasks. There are blades for cutting metal, wood, plastic, and even pruning blades for tree branches, as well as many other specialty blades. Blades come in many lengths and thicknesses and feature different types of teeth. While features such as carbide tips can greatly enhance cutting power on certain materials, the most important feature to pay attention to is the number of teeth, which is measured in teeth per inch (TPI). As a rule of thumb, more teeth equals cleaner cuts, while fewer teeth lead to quicker, but rougher cuts. This means a blade with a higher TPI will generally perform better when cutting metal or PVC pipes, while a blade with a lower TPI is perfect for wood and demolition. Thin, flexible blades allow cuts to be made in hard-to-reach places and make curved cuts easier, while stiffer blades will offer the most cutting power, but limit the saw’s maneuverability. Demolition blades are very thick and extra strong, allowing the blade to tear through multiple types of material. Most hardware stores sell blades in bulk variety packs, making it easy to always have the right blade for the job in your toolbox.
Safety Considerations
Due to their power and design, reciprocating saws are prone to kicking, which can lead to injury when not handled properly. This kicking is typically a result of the blade catching or hitting material, which, due to the blade’s back-and-forth motion, abruptly throws the saw backward. For this reason, a firm, two-handed grip should be on the saw whenever possible. Additionally, loose clothing should be avoided, and safety gear such as eye protection and a dust mask should always be worn during operation. Lastly, the saw’s power source should always be disabled when changing blades.
How to Use a Reciprocating Saw
Buying vs. Renting
Once you use a reciprocating saw once, chances are you’re going to find a multitude of uses for it in the future. For this reason, buying is often a better option for most people than renting. On top of that, a quality reciprocating saw costs just more than $100 and will last for years if properly cared for. However, if you truly only need a saw once, rental options are available for around $20 per day. To determine the length of the blade that will best suit the job, always choose a blade that is at least two inches longer than the depth of the material you are cutting. However, avoid using a blade that is too long for the job, as this will increase the risk of kickback and likely make the job more difficult. To start the cut, place the blade on the material with the shoe firmly pressed against the material. Slowly engage the trigger until the blade creates a groove in the material, then gradually ramp up the speed of the blade and firmly hold the saw against the material until the cut is complete. Allow the blade to come to a complete stop before lifting away and setting the saw down.
Keeping a Reciprocating Saw in Good Condition
To keep a reciprocating saw in good working order, it’s important to take good care of it. While today’s reciprocating saws can take a beating, you should avoid unnecessary abuse. Keep saws in a hard toolbox when not in use, and when in use, take time to set your tool on the ground rather than tossing it to the side. This will ensure delicate internal components last as long as possible. To further care for your reciprocating saw, do your best to clean your saw between uses. Most importantly, use an airgun to blow out the vents to prevent the electric motor from overheating.
When to Replace a Reciprocating Saw
Reciprocating saw blades will need to be replaced once dull or damaged, but this isn’t the case for the saw itself. A quality reciprocating saw that has been taken care of should last for years on end, but it’s important to inspect your saw and take note of any unsafe wear that is occurring. A saw with a loose shoe or a blade release that isn’t functioning properly can hinder your work and pose a safety risk. Once electrical components start to fail, you can enlist a professional tool repair shop, but replacing your saw may be the more economical route, especially for budget saws.
