The Hanson A-006H mixer head is made of an aluminum zinc alloy. The shaft is 3/8" hex steel. This strong, long lasting mixer is perfect for mixing liquids in a 5 to 55 gallon container. The hex shaped shaft helps avoid loss of grip in your mixing chuck. Our mixers are designed to be used with a drill or mixing motor for combining and distributing different materials such as paints, plasters, glazes, floor coating epoxies and many more. This unique blade design mixes throughly with a minimum of air entrapment. The teeth are designed to work their way to the bottom of the thickest mixes.