Powder Metallurgy HSS Thread Mill

Solid carbide thread mill with PM-HSS containing tungsten carbides >0.2% for helical interpolation threading. Used in 3-5 axis CNC mills for blind holes. Advanced metallurgy qualifies under this high-performance subheading.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China5.7%+35.0%40.7%
🇲🇽Mexico5.7%+10.0%15.7%
🇨🇦Canada5.7%+10.0%15.7%
🇩🇪Germany5.7%+10.0%15.7%
🇯🇵Japan5.7%+10.0%15.7%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8207.70.60Lower: 37.9% vs 40.7%

If classified primarily as milling cutter

If milling function predominates over threading, moves to milling tools heading.

Not sure which classification is right?

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Import Tips & Compliance

Distinguish from milling cutters (8207.70); primary thread-forming function governs

High-value items—ensure accurate declared value with cost breakdowns

Mark coatings (TiN/TiAlN) separately as they don't affect HTS classification

Related Products under HTS 8207.40.30.00

HSS Tap for M6 Threads

A high-speed steel tap designed for cutting internal M6 metric threads in metal workpieces. It contains over 0.2% chromium and over 0.1% vanadium in the cutting edges, qualifying it for this HTS subheading. Used in manual or machine tapping operations for precision threading.

Carbide Tipped Threading Die M10 x 1.5

Adjustable round die for external M10 x 1.5 metric threads with tungsten carbide inserts exceeding 0.2% tungsten content. Designed for hand or lathe use in creating precise external threads on rods and bolts. The high-alloy cutting part meets the metallurgical criteria of this subheading.

HSS Spiral Point Threading Tap 1/4-20 UNC

Spiral point plug tap made from M2 high-speed steel with 4% chromium and 1.8% vanadium for cutting clean 1/4-20 UNC threads. Optimized for through-hole tapping in steel and aluminum. The elevated alloy content in the flutes classifies it under this high-performance tools subheading.

Vanadium Alloy Machine Reamer Tap

Combined threading and reamer tap with 6% molybdenum and 2% vanadium cutting edges for precision hole sizing and threading. Suitable for CNC machining centers. Exceeds vanadium threshold by weight, fitting this specialized HTS classification.

1/2-13 NPT Pipe Thread Tap

Taper pipe tap for 1/2-13 NPT threads in steel piping, constructed with 5% chromium HSS for durability. Designed for power tapping heads in plumbing and oilfield applications. Chromium content exceeds 0.2% threshold for this classification.

M12x1.75 Adjustable Threading Die

Two-piece adjustable die set for metric M12x1.75 external threads, featuring cobalt-molybdenum enhanced high-speed steel (over 0.2% Mo). Used in diestocks for field repairs and manufacturing. Alloy composition triggers this subheading's metallurgical requirement.