The Bosch TG503 5 In. Tuckpointing Dust Guard features tool-free installation, which makes it quick and easy to install and remove. The spring-loaded guard collects dust throughout the duration of the cut, from the initial plunge until the blade is removed from the material. The variable-depth adjustment allows the guard to be set to a desired cutting depth for maximum productivity in extended cutting applications. The guard features a large viewing window, which makes it easy to see the line of cut when in operation. It has a 1-3/8 In. dust port, which is designed to accommodate Bosch vacuum hose nozzles. Adapters (sold separately) are available to fit other vacuum hose nozzles. The TG503 tuckpointing guard fits a wide array of 4-1/2 In., 5 In. and 6 In. Bosch angle grinders, and it can accommodate tuckpoint diamond blade designed for both spindle grinders (7/8 In. arbor) and X-LOCK grinders. The guard works with Bosch PRO+GUARD™ dust solutions, an end-to-end dust collection system that helps users move toward OSHA silica dust compliance.