Edward Tools Paddle Mixer 27” for 3/8” power drill is the ideal tool for mixing concrete, drywall compound, mud, stucco, paint and more. Simply slip the hex shaft into your standard 3/8” drill and quickly mix. The zinc plated steel finish makes for quicker cleaning and is rust proof. This mixer paddle drill bit has a large 8 1/2” paddle that makes for more consistent and quicker mixing. Edward Tools Paddle Mixer 27” for 3/8” power drill comes with a lifetime warranty.