HS Code for Knee mill

The classification of a knee mill under HS code 8459.59 is determined by its mechanical design and the nature of its control system. Heading 8459 covers machine tools used for drilling, boring, milling, threading, or tapping by removing metal. Within this heading, the 8459.5 series is specifically dedicated to knee-type milling machines. These machines are characterized by a worktable supported by a "knee" that slides vertically on the machine's column. The specific subheading 8459.59 is reserved for those knee mills that are "other than numerically controlled." This means the machine is operated manually through handwheels or mechanical levers rather than through a Computer Numerical Control (CNC) system. To qualify for this code, the machine must be primarily designed for metal removal; machines designed for working wood, bone, or hard plastics are classified elsewhere. The manual nature of the 8459.59 classification is a critical distinction in international trade, as it separates traditional toolroom equipment from high-speed automated industrial machinery.

Products Included

• Manual vertical knee mills
• Manual horizontal knee mills
• Universal knee-type milling machines (non-CNC)
• Toolroom milling machines with manual knee adjustment
• Bench-top manual knee mills for metalworking

Common Misclassification

Knee mills are frequently confused with HS code 8459.51, which covers knee-type milling machines that are numerically controlled (CNC). If the machine has a computer interface for automated path control, it must be moved to 8459.51. Additionally, they are sometimes misclassified under 8459.69, which covers "other" milling machines. However, 8459.69 is only for machines that do not feature the specific knee-and-column construction, such as bed-type mills or bridge mills. Finally, if the machine is designed for materials other than metal, such as wood, it should be classified under heading 8465.

FAQ

What is the HS code for knee mill?

The HS code for a manual knee-type milling machine for metal removal is 8459.59.

How do I distinguish between 8459.59 and 8459.69?

The distinction lies in the structural design; 8459.59 is specifically for machines where the table is supported by a vertical knee, whereas 8459.69 is for other milling machine structures like bed mills.