RTC 30" Double Box Mixing Paddle — Creamier Mixes, Less Hunching A weak paddle leaves dry pockets in the bucket and forces you to hunch over the mix — and dry pockets in thinset or self-leveler show up as failures in the floor. The RTC 30" Double Box Mixing Paddle drives a strong upward motion that pulls heavy material off the bottom for a thorough, lump-free blend, and the long 30" shaft keeps your drill up high, cuts splatter, and saves your back. It's built from heavy-duty steel for daily professional use and mixes thinset, mortar, shower-pan mud, grout, and self-leveling compounds. Why Tile Pros Choose It Lump-free blends: Double-box head pulls material up from the bottom Easier on your back: 30" shaft keeps the drill high with less splatter Handles everything: Thinset, mortar, shower mud, grout, and SLC Heavy-duty build: Steel construction for daily professional use Consistent mixes: Thorough blend means fewer callbacks Spares your spine: Less hunching over a five-gallon bucket all day Pro tip: Start the paddle in the material before you squeeze the trigger to avoid wearing your mix — and your face — and mix at a moderate speed to keep from whipping in air. Let stiff mixes slake, then give them a final blend.