Safety tops the list when it comes to chain-saw features, followed by convenience and ease of use--especially since a heavy, clumsy saw can contribute to fatigue and carelessness. Today's saws typically have a label showing compliance with voluntary safety standards, including a test for kickback. Here are the chain saw features to consider.
Reduced-kickback chain
Extra guard links and a less-aggressive cutting profile help keep the chain from taking too large a bite, which could cause kickback. Most saws now include this feature.
Reduced-kickback bar
Most chain saws have a bar with a narrow tip or nose to limit the cutting area that generates most kickback.
Chain brake
This feature stops the chain almost instantly when the front hand guard is pushed forward or if the saw kicks back. Most gas-powered saws and many electrics now have one.
Bar-tip guard
Some saws have a steel attachment that covers the nose of the bar, called a tip guard. While the guard prevents kickback at its source, it also shortens the usable length of the bar and can get in the way when working, inducing many owners to remove it.
Chain catcher
This metal extension beneath the guide bar helps keep a thrown chain from flying back toward the user. Most models have it--a plus, particularly if the chain is too loose because of improper tensioning and other maintenance.
Trigger lockout
Most saws now include a separate palm switch that must be pressed before the throttle trigger engages.
Shielded muffler
Mufflers on gas-powered saws typically have a heat shield to protect hands and fingers from burns.
Case or sheath
A full case or a cover for the bar and chain helps protect against cuts when you carry or store the saw. A cover also helps contain oil leaks from the chain. You'll find aftermarket cases and covers if your saw doesn't include one.
Wraparound front handle
Many saws now have a wraparound handle that provides a comfortable grip and eases the horizontal cutting needed when felling trees.
Automatic chain oiler
Even low-priced saws now include this must-have device, which lets you keep cutting without having to stop and pump a plunger to oil the cutting bar--and keep both hands firmly on the saw. A well-oiled bar and chain keep both from wearing prematurely and overheating, which can lead to a broken or thrown chain.
Bucking spikes
These sharp spikes near the base of the bar bite into logs and serve as a fulcrum, letting you pivot the bar and chain downward while cutting logs on a sawbuck or log stand. Most saws include this simple feature; metal spikes tend to work better than plastic ones.
Tool-free chain adjuster
A hand-operated wheel-and-crank mechanism conveniently unlocks and locks the chain bar and moves it in and out so you can adjust chain tension without having to use a wrench or screwdriver. It can also improve safety by encouraging making proper adjustment quick and easy.
Visible bar-oil level
A translucent tank or viewing strip lets you check the oil level for the bar and chain at a glance so you can add more when needed. Most saws tend to use more oil than you may expect.
Anti-vibration
Most gas models have rubber bushings or metal springs between the handle and the engine, bar, and chain to minimize vibration. Without that feature, vibration can make sawing both onerous and fatiguing--a concern for safety as well as comfort.
