A: The mixing blade section of this item is 5 inches.
A: You will need a standard 1/2" drill chuck.
A: I used my 18v Ridgid drill and it worked perfectly
A: It will work with a 3/8 but 1/2” wo7ld be best
A: The shaft will fit into my 3/8 drill chuck. However, unless mixing something somewhat 'light' you could probably injure a typical cordless drill or even a standard-duty 3/8 corded drill. That is to say, just because it fits into the chuck, does not mean it's the right tool for the applicable job and if said tool breaks in the middle of the mix, you may have a bigger problem on your hands.
A: This will fit any drill. However, depending on what you're mixing, you will need a very powerful drill. I burned out a 1/2-inch corded drill mixing tile mortar.
A: Yes it will
A: Yes if it is strong enough and takes a 1/2" chuck. I used a battery operated Porter Cable drill. No problem.
A: The shaft of this Anvil Eggbeater Mixer is 1/2-inch (not 3/8-inch). Accordingly, the drill must have a chuck slightly greater than 1/2-inch to work with this mixer. I apologize for my previous response incorrectly submitted.
A: The shaft of this Anvil Eggbeater Mixer is about 1mm larger than 3/8-inch. In other words, the drill must have a chuck greater than 3/8-inch to work with this mixer. All other answers to this question are wrong.
A: Bought to mix concrete, worked great.
A: I have a 3/8" dewalt and the eggbeater bit was too big to fit in the opening all the way open.
A: Any 3/8 drill or bigger will work with the mixer
A: Any drill will work