20 mm Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.29.59 Rings of Niobium (columbium) (other than unwrought, waste and scrap and powders), measuring not over 20 mm in thickness (provided for in subheading 8112.99.90) Free No change No change On or before 12/31/2024 . 5054. Tungsten secondary raw material Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.29.60 Used cermets and articles thereof, including waste and scrap, the foregoing imported for the extraction of tungsten (provided for in heading 8113.00.00) Free No change No change On or before 12/31/2024 . 5055. Gear-driven bolt cutters and pipe cutters Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.29.61 Pipe cutters and bolt cutters, each with a gear-driven mechanism (provided for in subheading 8203.40.30) Free No change No change On or before 12/31/2024 . 5056. Rotary cutters Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.29.62 Rotary cutting hand tools, of iron or steel, designed to cut fabrics and craft materials, each with a replaceable circular blade and plastic handle with blade lock (provided for in subheading 8205.51.30) Free No change No change On or before 12/31/2024 . 5057. Food graters Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.29.63 Food graters with blades or working surfaces of base metal, with nonworking parts of plastic, such graters not exceeding 31 cm in overall length (provided for in subheading 8205.51.30) 0.9% No change No change On or before 12/31/2024 . 5058. Hand tools for applying plastic clip fasteners to garments Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.29.64 Hand tools of plastics, designed for insertion and application of plastic clip fasteners, such hand tools each with