Package and Usage Notes: Includes 1 manual handle and 5 curved inserts. Please wear appropriate eye and hand gear, place the cut parts out of reach of minors, and replace the insert carefully INTERCHANGEABLE INSERT SET: Package includes blue textured handles and 5 curved inserts to provide a practical hand tool setup for repetitive deburring and cleanup work pieces STEEL INSERT CONSTRUCTION: High hardness steel insert allows for polishing and deburring metal or polymer workpieces and controls the finishing in a practical hand tool form CONTROLLED HANDLING DESIGN: Textured blue handle supports secure grip and manual control, while dark color holder keeps curved scraper cutter in place for careful trimming work Manual deburring usage: The inner hole scraper is useful for removing burrs, trimming coarse rims and chamfering metal or polymer pieces during home repairs and factory maintenance, Manufacturer: Sbshiouu