Micrometer Standard Setting Rods
Precision-ground gauge blocks used to calibrate and set zero on outside micrometers. These rods are parts of HTS 9017.90.0132 for micrometers under subheading 9017.20.70. Typically supplied in sets with tolerances of ±0.0001 inches.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If certified as primary reference standards
Gauge blocks used as laboratory standards classify under precision measuring instruments of 9031.41.
If coarse tolerance rods for general workshop interchangeability
Non-precision tooling accessories go to interchangeable tools heading rather than instrument parts.
If suitable for multiple instrument types beyond 9017.20.70
General parts not principally for specific Chapter 90 articles default to heading 9033.
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Import Tips & Compliance
• Include calibration certificates traceable to NIST or equivalent for duty-free scientific instrument consideration
• Specify exact tolerance grades (e.g
• Grade 00) and material (carbide-tipped steel) in commercial invoice
• Import in protective cases labeled for specific micrometer models to avoid general gauge classification
Related Products under HTS 9017.90.01.32
Digital Micrometer Replacement Jaws
Precision-ground steel jaws designed specifically for digital micromrometers used to measure small dimensions in machining. These parts are classified under HTS 9017.90.0132 as accessories for handheld micrometers of subheading 9017.20.70. They ensure accurate contact and measurement for external dimensions up to 25mm.
Vernier Caliper Extension Rods
Stainless steel extension rods for vernier calipers that enable measurement of deeper internal dimensions. These accessories belong to HTS 9017.90.0132 as parts of handheld calipers from subheading 9017.20.70. They attach directly to the caliper's main scale for extended reach up to 100mm.
Dial Indicator Mounting Base
Cast iron magnetic base with fine adjustment for securing dial indicators during setup and measurement. Classified under HTS 9017.90.0132 as an accessory for handheld dial test indicators of subheading 9017.20.70. Provides stable positioning for precise alignment checks.
Caliper Depth Gauge Attachments
Specialized probe attachments that convert standard vernier calipers into depth gauges for hole measurements. Classified as HTS 9017.90.0132 accessories for calipers of subheading 9017.20.70. Features hardened tips for durability in shop environments.
Flexible Micrometer Measuring Anvils
Interchangeable ball-point anvils for micrometers that accommodate cylindrical or curved surfaces. These parts fall under HTS 9017.90.0132 as accessories for 9017.20.70 micrometers. Available in radii from 0.5mm to 5mm for specialized measurements.
Dial Caliper Rack and Pinion Assembly
Complete replacement rack and pinion mechanism for dial vernier calipers, including gear train. Classified under HTS 9017.90.0132 as internal parts of 9017.20.70 calipers. Ensures smooth slide action and accurate dial reading.