Since their introduction in 1970, aluminum bats have come a long way. Technology has allowed for bats to increase a player's performance at the plate and even tailor to certain batter's strengths. When choosing a bat, make sure you pick one that is in line with your skill level, hitting ability, height, weight and age.
Single Wall
This is the most basic type of bat. The single wall bat is made with just one piece of metal with nothing behind it. Most, if not all, bat manufacturers make single wall bats. They are the standard.
Double Wall
These bats are primarily used in softball. When the bat is built, it's built with two very thin walls that are spaced close together. These bats are supposed to increase the "trampoline effect." They have also been reported to dent very easily, and are quite expensive.
One Piece Construction
These bats are constructed out of one piece of metal. Some hitters prefer the one piece construction because they believe it offers better durability.
Two Piece Construction
These bats are made of two separate pieces--the barrel and the handle. Each piece is made separately and then bonded together. This design was specifically created to give the bat more "flex" and the handle, creating a spring-like effect that's supposed to send the ball farther.
Carbon Fiber
Easton makes a bat called the Reflex that has aluminum walls with carbon fiber reinforcement. These bats--the C-Core and Z-Core models--are known for their durability.
Alloys
These bats are made with aluminum that is mixed with other metals to make the bats lighter weight and more durable. Popular alloys include copper, scandium, zinc and magnesium. Each has its own different characteristics of weight and weight distribution.
Titanium/Graphite-Lined
These are a newer type of bat. The titanium and graphite allows for the aluminum wall to be made very thin--and therefore light--but maintain its durability. They're also said to reduce vibration and expand the sweet spot.
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