PE8708 – 3-1 Caulk / Silicone Trowel & Scraper The 3-in-1 Caulk / Silicone Tool consists of a fixed-blade caulk remover and scraper with an adjustable radius. It works with acrylic latex and silicone and is handy for window bath and shower projects. Includes 5 different radius soft trowel pads. 3R 6R 10R 13R & 17R