2 Stroke Trimmers - The most common Trimmer type is a 2 Stroke gasoline trimmer. They are also known as 2 cycle Gasoline Trimmers. These engines use gasoline mixed with oil. The most common ratio is 50:1. This ratio is 50 parts gas to one part oil.

4 Stroke Trimmers - 4 Stroke trimmers use the same fuel used in automobiles. 4 Stroke Trimmers have a separate oil reservoir in order to keep the engine lubricated.

Electric Trimmers - Electric Trimmers are powered by a 120V AC motor which needs to be connected to house power using an extension cord. Electric Trimmers are very low maintenance.

Cordless Trimmers - Cordless Trimmers use either a lithium-ion (Li-ion) or nickel cadmium (Ni-Cad) rechargeable battery. the Cordless batteries are typically 18V, 24V, or 30V batteries.

Straight Shaft Trimmers - Straight Shaft Trimmers are typically used by landscape professionals.

Curved Shaft Trimmers - Curved Shaft Trimmers are more compact than straight shaft Trimmers. They typically have smaller engines and are lighter weight and thus preferred by occasional use homeowners.

What are the different names for a Trimmer?

Trimmers are often called Line Trimmers, Strimmers, String Trimmers, Trimmers, and Weed Wackers.