Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

HTS heading 8466: Parts and accessories suitable for use solely or principally with the machines of headings 8456 to 8465, including work or tool holders, se…

54 numbered lines under heading 8466, including 36 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.

HTS heading 8466
HTS codeDescriptionUnitGeneralSpecialColumn 2
8466Parts and accessories suitable for use solely or principally with the machines of headings 8456 to 8465, including work or tool holders, self-opening dieheads, dividing heads and other special attachments for the machines; tool holders for any type of tool for working in the hand:
8466.10.01Tool holders and self-opening dieheads3.9%Free (A*,AU,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG)45%
8466.10.01.10Tool holders for forming-type or cutting-type diesNo.
8466.10.01.30Holders for replaceable cutting or drill insertsNo.
8466.10.01.75OtherNo.
8466.20Work holders:
8466.20.10For machine tools used in cutting gears4.6%Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)45%
8466.20.10.10Jigs and fixturesNo.
8466.20.10.90OtherNo.
8466.20.80Other3.7%Free (A*,AU,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG)35%
For metalworking machine tools:
8466.20.80.20Jigs and fixturesNo.
8466.20.80.35OtherNo.
Other work holders:
8466.20.80.40Jigs and fixturesNo.
8466.20.80.65OtherNo.
8466.30Dividing heads and other special attachments for machines:
8466.30.10.00Dividing headsNo.3.7%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)35%
Other special attachments
8466.30.60Machines2.9%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)35%
8466.30.60.40For woodworking machinesNo.
8466.30.60.85OtherNo.
8466.30.80.00OtherNo.8%Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)45%
Other:
8466.91For machines of heading 8464:
8466.91.10.00Cast-iron parts not advanced beyond cleaning, and machined only for the removal of fins, gates, sprues and risers or to permit location in finishing machinerykgFree10%
8466.91.50.00OtherNo.Free35%
8466.92For machines of heading 8465:
8466.92.10.00Cast-iron parts not advanced beyond cleaning, and machined only for the removal of fins, gates, sprues and risers or to permit location in finishing machinerykgFree10%
8466.92.50Other4.7%Free (A*,AU,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG)35%
8466.92.50.10Of woodworking machinesNo.
8466.92.50.90OtherNo.
8466.93For machines of headings 8456 to 8461:
8466.93.11.00For water-jet cutting machinesNo.Free35%
Other:
Bed, base, table, head, tail, saddle, cradle, cross slide, column, arm, saw arm, wheelhead, tailstock, headstock, ram, frame, work-arbor support, and C-frame castings, weldments or fabrications:
8466.93.15Cast-iron parts not advanced beyond cleaning, and machined only for the removal of fins, gates, sprues and risers or to permit location in finishing machineryNote: See 9903.90.08.Free10%
8466.93.15.30For metalworking machine tools for cutting, grinding or finishing gearskg
8466.93.15.60Otherkg
Other:
8466.93.30.00Of metalworking machine tools for cutting gearsNo.5.8%Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)45%
8466.93.53Other4.7%Free (A*,AU,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG)35%
8466.93.53.40Of metalworking machine tools for grinding or finishing gearsNo.
8466.93.53.85OtherNo.
Other:
8466.93.60Cast-iron parts not advanced beyond cleaning, and machined only for the removal of fins, gates, sprues and risers or to permit location in finishing machineryFree10%
8466.93.60.30For metalworking machine tools for cutting, grinding or finishing gearskg
8466.93.60.60Otherkg
Other:
8466.93.75.00Of metalworking machine tools for cutting gearsNo.5.8%Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)45%
Other:
8466.93.96.00Parts and accessories of machine tools of subheadings 8456.11, 8456.12, 8456.30, 8457.10, 8458.91, 8459.21, 8459.61 and 8461.50, of a kind used solely or principally for the manufacture of printed circuits, printed circuit assemblies, parts of heading 8517 or parts of automatic data processing machinesNo.Free35%
8466.93.98Other4.7%Free (A*,AU,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG)35%
8466.93.98.40Of metalworking machine tools for grinding or finishing gearsNo.
8466.93.98.85OtherNo.
8466.94For machines of heading 8462 or 8463:
Cast-iron parts not advanced beyond cleaning, and machined only for the removal of fins, gates, sprues and risers or to permit location in finishing machinery:
8466.94.20.00Bed, base, table, column, cradle, frame, bolster, crown, slide, rod, tailstock and headstock castings, weldments or fabricationskgFree10%
8466.94.40.00OtherkgFree10%
Other
8466.94.65Bed, base, table, column, cradle, frame, bolster, crown, slide, rod, tailstock and headstock castings, weldments or fabrications4.7%Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)35%
8466.94.65.40Parts of mechanical transfer pressesNo.
8466.94.65.85OtherNo.
8466.94.85Other4.7%Free (A*,AU,BH,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG)35%
8466.94.85.40Parts of mechanical transfer pressesNo.
8466.94.85.85OtherNo.

Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.

Source: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.