Blade is one of the most essential part of a chainsaw. It must be sharp and in an unbroken condition. The sharpness is to ensure that the blade can cut through any material it is used for. The serrated teeth of the blade must not be broken or damaged otherwise, it would become difficult for cutting and sawing.

Chain Catcher is a metal or plastic guard that is used to prevent a broken or derailed saw chain from striking the operator. It is mainly used to protect the user from being injured by a renegade saw chain.

Anti Vibration Handle System is used to limit the ergonomic stress to the operator's hands, arms and joints, caused due to the vibrations. This absorbs much of the vibration output ensuring smoother handling.

Chain brake was introduced during the mid 90's as a way of putting an effective stop to the chain if kickback occurs. Kickback is a common concern with chainsaw use and leads to many accidents.

Muffler is a hearing protection device used on chainsaws to reduce engine noise. It absorbs a good part of the noise thus making less impact on a users hearing.

Flywheel is a weighted wheel that controls engine speed and assists in cooling the engine. Even though chainsaws are not excessively big machines but, they produce enormous amounts of power. Heating is one of the most common problem however, flywheels tend to reduce a lot of the heat stress.

Clutch is attached to the chain sprocket, and is a connector that controls the driving part of a saw.

Decompression Valve is used to release the saw compression which allows easier starting.

Throttle is used to regulate the RPM by increasing or decreasing the volume of fuel to the cylinders. The chainsaw stops the chain when the pressure on the throttle is released.

Throttle Interlock is a lock mechanism used to avoid throttle from being activated, till it is depressed.