| HS Code | Official Doc | Tariff Rate | Origin | Destination | Effective Date |
|---|---|---|---|---|---|
| 9031909130 | Doc | 55.0% | CN | US | 2025-05-12 |
| 9031905900 | Doc | 55.0% | CN | US | 2025-05-12 |
| 9017308000 | Doc | 58.9% | CN | US | 2025-05-12 |
| 9017304000 | Doc | 60.8% | CN | US | 2025-05-12 |
| 8487900080 | Doc | 83.9% | CN | US | 2025-05-12 |
Feeler Gauge, Monolithic
A feeler gauge is a tool used to measure very small gaps. The term "monolithic" refers to a specific construction type where the leaves (thin blades of varying thicknesses) are cut from a single piece of steel.
Material:
- Steel: The most common material, typically hardened stainless steel for resistance to corrosion and wear. Carbon steel is also used, but requires protection against rust.
- Other Alloys: Special applications may utilize alloys like beryllium copper for non-magnetic properties or greater flexibility.
Purpose:
Feeler gauges are used to determine the clearance between two parts. This is critical in various mechanical applications where precise gaps are required for proper function, lubrication, or to avoid interference.
Function:
The gauge consists of a series of thin, rectangular blades of different thicknesses. The blades are inserted between the two parts being measured. The blade that fits with slight drag represents the gap size. The thicknesses are typically marked on each blade. Monolithic gauges offer a more uniform thickness profile compared to stacked-leaf designs.
Usage Scenarios:
- Engine Maintenance: Checking valve clearances, spark plug gaps, bearing clearances, and piston ring gaps.
- Machining: Measuring the gap between cutting tools and workpieces.
- Automotive Repair: Adjusting ignition timing, carburetor settings, and checking tolerances.
- Metalworking: Assuring proper fit of components.
- Precision Measurement: General gap measurement in any mechanical assembly.
Common Types:
- Monolithic (Solid): Cut from a single piece of steel; known for accuracy and durability.
- Stacked-Leaf: Consists of individual blades held together by a handle or screw; more common and generally less expensive.
- Tapered Feeler Gauges: Blades are tapered to a point for accessing difficult-to-reach spaces.
- Wire Feeler Gauges: Thin wires used for measuring small clearances in tight areas.
- Combination Gauges: Include both feeler gauge blades and a depth rod for versatile measurement.
The declared goods are a monolithic feeler gauge, used for precise measurement of gaps or clearances. These gauges are typically employed in engineering, manufacturing, and automotive applications to assess the narrow spaces between parts.
The following HS codes are relevant based on the provided reference material:
- 9017.30.80.00: This HS code falls under Chapter 90, which covers “Drawing, marking-out or mathematical calculating instruments (for example, drafting machines, pantographs, protractors, drawing sets, slide rules, disc calculators); instruments for measuring length, for use in the hand (for example, measuring rods and tapes, micrometers, calipers), not specified or included elsewhere in this chapter; parts and accessories thereof.” Specifically, it covers “Micrometers, calipers and gauges: Other”. This is applicable as a feeler gauge is a type of gauge used for measuring length. The total tax rate is 58.9%, comprised of a 3.9% base tariff and a 25% additional tariff, increasing to 30% after April 2, 2025.
- 9017.30.40.00: Also within Chapter 90, this code covers “Micrometers, calipers and gauges: Micrometers and calipers”. While specifically mentioning micrometers and calipers, a feeler gauge falls under the broader category of gauges for measuring length. The total tax rate is 60.8%, consisting of a 5.8% base tariff and a 25% additional tariff, rising to 30% after April 2, 2025.
Regarding HS code 9017.30.80.00 and 9017.30.40.00, it is important to note that these are instruments for measuring length.