description quick-mix mixer this mixer is used to stir and blend paint, drywall and accoutic mud. the mixer blades are securely welded to a 3/8 in. hex shaft for durability. it works with all 7/16 in. or larger drills and a limited number of 3/8 in. slow speed drills. california proposition 65 warning. specifications acme tools brand name marshalltown acme tools part number 819 assembled weight (lbs) 5.0 california proposition 65 warning required yes globaltradeitemnumber (gtin) 00035965063890 package weight 6 package weight (lbs) 6 upc 035965063890