Epoxy Mixing Paddle - Flat steel blade with slots so material flows through and around mixer. Ideal for mixing epoxies, mortars, resins, and other construction materials. The 7-1/4" long paddle and shaft is plated to resist wear and corrosion. Fits most 1/2" drill motors. 7/16" hex shaft. Overall length is 18".Slotted flat blade allows material to flow through and around mixerIdeal for epoxy, mortar, and resin material7/16 In. shaft, 18 In. overall lengthFits most 1/2 In. drills