Micrometer Ratchet Stop Thimble
Friction thimble with integrated ratchet stop for consistent measuring pressure on micrometers. Part of HTS 9017.90.0132 accessories for subheading 9017.20.70 instruments. Delivers repeatable force of 1-2N per click.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If part of complex optical comparators
Parts for optical measuring systems use 9031.90 headings.
If basic steel thimbles without ratchet mechanism
Simple metal components without specific function classify as other steel articles.
If imported as general flywheel pulleys
Mechanical power transmission components go to Chapter 84.
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Import Tips & Compliance
• Force calibration data essential for proving measuring function
• Thread specification (e.g
• M6x0.5) must match target micrometers
• Distinguish from simple friction sleeves via ratchet mechanism documentation
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.
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.
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.