SP-17 Surface Prep Tool W/ Dual Position Blade Holders for mastic removal including epoxy, glues, grout, fiberglass, paint, and more!The SP-17 floor surface preparation tool is an environmentally safe and productive tool for scraping concrete floors. The SP-17 was designed for scraping hard surface deposits including epoxy, fiberglass, glues, grout, ice, packed soils, paint and a variety of build-up on concrete surfaces. It is recommended to rotate cutter blades in a synchronized pattern to optimize cutter life and maximize production.Includes NP-9200 Clutch PlateREPLACEMENT PARTS 1" x 1" '8-Way' Carbide Cutter (sold seperately as pack of 3) Carbide Insert Holder (sold seperately)