HS Code Subheading

Machine-tools; for honing or lapping

8460.40 Subheading
Section XVI — Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles

About HS Code 846040

This category specifically covers machine tools for honing or lapping, which are superfinishing processes designed to achieve extremely precise dimensions, superior surface finishes, and geometric accuracy. Honing typically refines internal cylindrical surfaces (e.g., engine cylinder bores), while lapping uses loose abrasives to achieve exceptional flatness and fine finishes on various surfaces. These machines are critical in industries demanding ultra-precision, such as automotive (engine components), aerospace, hydraulics, and medical devices. Importers are typically high-precision manufacturing facilities, while exporters are often specialized manufacturers from countries known for advanced finishing technologies.

Products Under This Code

Vertical honing machine, Horizontal honing machine, Flat lapping machine, Cylindrical lapping machine, Bore honing machine, Gear lapping machine

Real World Examples

Sunnen SV-1000, Gehring Honing Machine, Lapmaster 24, Engis Hyprez, Nagel Honing Machine

Common Misclassification

Can be confused with general grinding machines under 8460 (e.g., 846090) if the distinct 'honing' or 'lapping' process, which focuses on finishing rather than primary material removal, is not recognized.

Products Classified Under 8460.40

Honing machineLapping machine

Related Codes

8460.12 Machine-tools; flat-surface grinding machines, numerically controlled 8460.19 Machine-tools; flat-surface grinding machines, other than numerically controlled 8460.22 Machine-tools; grinding machines (excluding flat-surface), centreless, numerically controlled 8460.23 Machine-tools; cylindrical grinding machines (excluding flat-surface and centreless), numerically controlled 8460.24 Machine-tools; grinding machines (excluding flat-surface, cylindrical and centreless), numerically controlled 8460.29 Machine-tools; grinding machines (excluding flat-surface), other than numerically controlled 8460.31 Machine-tools; sharpening (tool or cutter grinding) machines, numerically controlled 8460.39 Machine-tools; sharpening (tool or cutter grinding) machines, other than numerically controlled 8460.90 Machine-tools; for deburring, grinding, polishing or otherwise finishing metal, sintered metal carbides or cermets by means of grinding stones, abrasives or polishing products, n.e.c. in heading no. 8460

Industry

This code belongs to the Electronics & Electrical Equipment industry.

Trade Overview

Germany, USA, and Japan are leading exporters; China, India, and Mexico are major importers.

Frequently Asked Questions

What is HS code 846040?

HS code 846040 covers: Machine-tools; for honing or lapping. This category specifically covers machine tools for honing or lapping, which are superfinishing processes designed to achieve extremely precise dimensions, superior surface finishes, and geometric accuracy. Honing typically refines internal cylindrical surfaces (e.g., engine cylinder bores), while lapping uses loose abrasives to achieve exceptional flatness and fine finishes on various surfaces. These machines are critical in industries demanding ultra-precision, such as automotive (engine components), aerospace, hydraulics, and medical devices. Importers are typically high-precision manufacturing facilities, while exporters are often specialized manufacturers from countries known for advanced finishing technologies.

What products fall under HS code 846040?

Vertical honing machine, Horizontal honing machine, Flat lapping machine, Cylindrical lapping machine, Bore honing machine, Gear lapping machine

What are common misclassifications for HS code 846040?

Can be confused with general grinding machines under 8460 (e.g., 846090) if the distinct 'honing' or 'lapping' process, which focuses on finishing rather than primary material removal, is not recognized.

How is HS code 846040 structured?

HS code 846040 is a 6-digit subheading under the Harmonized System. The first 2 digits (84) identify the chapter, digits 3-4 (60) identify the heading, and digits 5-6 (40) specify the subheading. This code is standardized globally by the World Customs Organization.