The bat's form has become more refined over time. In the mid-19th century, baseball batters were known to shape or whittle their own bats by hand. This allowed there to be a wide variety in shape, size, and weight. For example, there were flat bats, round bats, short bats, and fat bats. Earlier bats were known to be much heavier and larger than today's regulated ones. During the 19th century, many shapes were experimented with, as well as handle designs. Today, bats are much more uniform in design.
A fungo bat's size and weight make it easier to operate with one hand or two. Coaches can toss a ball up with one hand and hit pop flies or ground balls farther and with greater accuracy with a fungo bat than with a regular bat. According to an article by LJWorld, high school baseball coach Brad Stoll said fungo bats allow him to hit more balls because heavier regular bats would "wear you out." Fungo bats should be used as a practice tool only and should not be used to hit a pitched ball.
Even in those formative years, authorities on the game warned the practice of hitting fungoes should be limited to coaches. Henry Chadwick, one of baseball’s earliest proponents, claimed “The weakest batting is shown when the batsmen indulges in fungo hitting,” according to the Art of Batting. Others agreed that the practice was bad for training a batter’s reflexes: “While watching some of our freshmen practicing ‘fungo’ batting the other afternoon it occurred to me that it was about the worst kind of practice a batsman could imagine in training his eye in batting,” a writer claimed in the March 3, 1886 edition of The Sporting Life. “It trains the eye to meet the ball in batting it in a manner which never occurs in actual play. It ought to be prohibited on every well regulated ball field.”
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First-base coach Daryl Boston has been working Palka with fungo drills. — Phil Thompson, chicagotribune.com, "Yoan Moncada has untapped power from right side, Rick Renteria says," 23 May 2018 While the Angels took infield before the Texas finale Wednesday, Ohtani stood by the cage with a bat in his hand waiting for BP near where Scioscia was hitting fungo to some infielders. — Stephen Hawkins, chicagotribune.com, "Shohei Ohtani eager for more as Angels balance work for 2-way star," 12 Apr. 2018 And dad liked to take us to Lincoln Park and hit fungos to my twin brother, Javier, and me. — John Hickey, The Mercury News, "Adam and Will Rosales proselytize for baseball," 11 Apr. 2017 Since then, his only baseball activity has been hitting one-handed fungos to teammates in ground ball practice. — Nick Groke, The Denver Post, "Colorado skipper Bud Black faces the Padres with a new perch; Rockies still scanning Desmond, Dahl and Murphy," 10 Apr. 2017

Alright, let’s get to the drill. “Fungo Baseball/Softball” is a great drill for fielding and base running.  It’s the same as playing an inter-squad scrimmage, except the pitchers do not throw live, and the hitters toss the ball to themselves and hit fungoes where they want.  It is set up as a competitive game with an endless amount of teaching points. I really like to do this drill early in the season in order to simulate some real game like situations, and also when you’re on a hot streak and you’re looking to keep your team sharp on the little things like relays, backing up, and communication.
There are many advantages to using a fungo bat. If you are a coach or a parent looking to improve your player's defensive skill set, you're going to want and need a fungo bat. A normal adult wooden baseball bat will weigh around 27-31 ounces, and after a couple of rounds of pop-flys, it is going to feel like you just went through a full-on workout. With the help of a fungo bat, you will be able to hit ground balls and pop flys all day without getting fatigued.  The barrel on a fungo bat will typically be 2 1/4 inches in diameter which greatly helps increase your control over the bat through the hitting zone. While the barrel has a much more thin diameter, it is also much longer in comparison to a normal wood baseball bat. This larger hitting surface and smaller barrel combine to give coaches and parents quick swing speeds with precise accuracy. 
Before we get started, we have to define the word "fungo" or "fungoes." To summarize, fungo (fungoes for plural) is a ball tossed into the air by the batter and struck as it comes down during practice sessions.  If you are a coach, you are more than likely familiar with a fungo bat. Or, if you are a player who has ever worked on ground balls or pop-flys in practice, you should know what a fungo bat is, as well. For the rest of us, a fungo bat might as well be a foreign object. What is that oddly shaped, extra long practice bat? So, let's answer the most common fungo bat questions:
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