Universal Dividing Head for Milling Machines

A mechanical dividing head attachment for use with milling machines (8459-8461) that allows precise workpiece indexing for gear cutting and spiral milling operations. Classified under HTS 8466.30.8000 as a dividing head, a special attachment principally suited for these machine tools. It features worm gear indexing plates for accurate angular divisions.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China8%+35.0%43%
🇲🇽Mexico8%+10.0%18%
🇨🇦Canada8%+10.0%18%
🇩🇪Germany8%+10.0%18%
🇯🇵Japan8%+10.0%18%

Alternative Classifications

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

8466.30.10Lower: 38.7% vs 43%

If it's a self-opening diehead instead

Self-opening dieheads have specific provisions separate from other special attachments.

8483.50.90Lower: 37.8% vs 43%

If for flywheels or pulleys incorporated in the design

Components functioning as transmission elements classify under heading 8483 rather than machine attachments.

8466.92.50Lower: 39.7% vs 43%

If sold as tool holder rather than dividing mechanism

If primarily functioning to hold cutting tools vs. indexing workpieces, it moves to tool holder provisions.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Provide engineering drawings showing indexing mechanism to confirm classification as dividing head

Label as 'for exclusive use with horizontal/vertical mills' to prevent customs challenges

Related Products under HTS 8466.30.80.00

Live Tooling Turret for Swiss Lathes

Driven tooling turret attachment for Swiss-type lathes (8458), enabling milling/drilling on rotating parts. Special attachment under HTS 8466.30.8000 for heading 8458 machines. Synchronous spindle speeds up to 15,000 RPM.

Automatic Pallet Changer Interface

Special attachment interface kit for horizontal machining centers enabling unmanned 8-pallet changes. HTS 8466.30.8000 for heading 8464-65 special attachments. Pneumatic/hydraulic docking system.

Probe Calibration Fixture for CMM-Integrated Mills

Special calibration attachment for mills with integrated coordinate measuring, ensuring probe accuracy to 1 micron. HTS 8466.30.8000 other special attachments for 8459-61. Kinematic mounting design.

CNC Machine Rotary Table Attachment

A precision rotary table designed as a special attachment for CNC milling machines in headings 8459-8461, enabling 4th axis machining by rotating the workpiece during operation. It falls under HTS 8466.30.8000 as a dividing head or other special attachment for these machine tools. This accessory is used solely with metalworking machinery for complex contouring tasks.

Angle Head Attachment for Machining Centers

An angle head special attachment for machining centers (8464-8465) that redirects spindle axis to 90 degrees, enabling access to undercuts and deep cavities without repositioning. Falls under HTS 8466.30.8000 as other special attachments for these machines. Essential for 5-sided machining in a single setup.

Quick-Change Tool Adapter for Lathes

A rapid tool change adapter system as a special attachment for engine lathes (8458), allowing instant turret indexing without manual adjustments. HTS 8466.30.8000 covers this as other special attachments principally for heading 8458 machines. Improves productivity in high-volume turning operations.