3" Spiral Mixer by Marshalltown Tools Save Liquid error (product-badge line 32): Computation results to '-Infinity'% $9.50 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Fits 3/8” or larger variable drill Speed 200-600rpm, depending on density of material to be mixed Place mixer in bucket of material and gently work around the bucket edges Mix thinset, mortar, grout, paint, etc.