Boring Mill Tailstock Assembly

Adjustable tailstock unit providing live center support for long workpieces in horizontal boring mills (heading 8459). HTS 8466.93.98 classification for parts principally used with 8456-8461 machines. Enables stable machining of large turbine shafts and locomotive components.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
šŸ‡ØšŸ‡³China4.7%+35.0%39.7%
šŸ‡²šŸ‡½Mexico4.7%+10.0%14.7%
šŸ‡ØšŸ‡¦Canada4.7%+10.0%14.7%
šŸ‡©šŸ‡ŖGermany4.7%+10.0%14.7%
šŸ‡ÆšŸ‡µJapan4.7%+10.0%14.7%

More Specific Codes

This product may fall under a more specific subheading:

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8466.94Lower: 14.7% vs 39.7%

If for boring/grinding machines specifically

Tailstocks designed exclusively for grinding operations may use more specific 8466.94 provisions.

8431.49.90Lower: 35% vs 39.7%

If used in parts of cranes or lifting equipment

Similar support structures for material handling classify under Chapter 84 lifting machinery.

8479.89Lower: 12.5% vs 39.7%

If for semiconductor boule grinders

Precision tailstocks for crystal processing equipment fall under semiconductor machine parts.

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Import Tips & Compliance

• Supply load capacity ratings and alignment specifications matching OEM boring mill requirements

• Include photos showing integration with specific machine models during customs valuation

• Certify material composition (e.g

• hardened alloy steel) for duty drawback eligibility

Related Products under HTS 8466.93.98

CNC Lathe Spindle Bearing Housing

This precision-machined housing holds the spindle bearings in CNC lathes of heading 8458, ensuring stable rotation during high-speed metal turning operations. It is classified under HTS 8466.93.98 as a part suitable solely for use with machines of headings 8456 to 8461. Designed for industrial machining centers, it maintains alignment under heavy loads.

Milling Machine Automatic Tool Changer Arm

The robotic arm component for automatic tool changers in vertical milling machines (heading 8459) grabs and swaps tools during CNC operations. Classified in 8466.93.98 as a special attachment principally for 8456-8461 machines. It enhances productivity in high-volume metalworking shops.

Drilling Machine Collet Chuck Adapter

Precision adapter that connects collet chucks to drilling machine spindles (heading 8456) for secure workpiece holding during hole-making operations. Falls under HTS 8466.93.98 as a work holder for 8456-8461 machines. Critical for maintaining runout tolerances in aerospace part production.

CNC Gear Hobbing Machine Hob Arbor

High-precision arbor shaft that mounts hobbing cutters in gear hobbing machines (heading 8458) for spline and gear tooth cutting. Classified HTS 8466.93.98 as a tool holder for 8456-8461 machines. Essential for automotive transmission gear production.

Thread Rolling Machine Die Holder

Heavy-duty holder that positions carbide dies for cold forming threads on fasteners in thread rolling machines (heading 8462, but parts under 8466.93). HTS 8466.93.98 for parts of 8456-8461 machines. Used in high-volume bolt and screw manufacturing.

Horizontal Machining Center Pallet Shuttler

Automated pallet transfer mechanism for horizontal machining centers (heading 8459) enabling continuous workpiece exchange without stopping spindle. HTS 8466.93.98 as special attachment for 8456-8461 machines. Critical for lights-out manufacturing of engine blocks.