Hobs and other gear cutting tools
Interchangeable tools for handtools, whether or not power operated, or for machine-tools (for example, for pressing, stamping, punching, tapping, threading, drilling, boring, broaching, milling, turning or screwdriving), including dies for drawing or extruding metal, and rock drilling or earth boring tools; base metal parts thereof: > Other interchangeable tools, and parts thereof: > Other: > Cutting tools with cutting part containing by weight over 0.2 percent of chromium, molybdenum, or tungsten or over 0.1 percent of vanadium > Hobs and other gear cutting tools
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 8207.90.30.30
Powdered Metal Gear Spline Broach
Push-type broach for internal gear splines made from powdered high-speed steel with tungsten over 0.2%. HTS 8207.90.3030 classification for gear cutting broaches with required metallurgy. Employed in PTO shaft and axle manufacturing.
Tungsten-Rich Bevel Gear Cutter
Rotary cutter for straight bevel gears featuring 18% tungsten alloy edges over 0.2% threshold. Under HTS 8207.90.3030 as qualifying gear cutting tool. Vital for differential and right-angle drive gear production.
Chrome-Moly Gear Shaving Cutter
Precision shaving cutter with chrome-molybdenum composition over 0.2% each, used for fine finishing of hardened gears post-hobbing. Classified in HTS 8207.90.3030 for gear cutting tools meeting alloy thresholds. Critical for automotive transmission gear accuracy.
High-Speed Steel Gear Hob
A precision hob made from high-speed steel with over 0.2% chromium and molybdenum content, designed for cutting involute gear teeth on hobbing machines. It falls under HTS 8207.90.3030 due to its classification as a gear cutting tool with specified alloying elements exceeding the weight thresholds. Commonly used in automotive and machinery manufacturing for producing spur and helical gears.
Tungsten Carbide Involute Gear Shaper Cutter
A shaper cutter with tungsten carbide cutting edges containing over 0.2% tungsten by weight, used for shaping internal and external gear teeth on gear shaping machines. Classified under HTS 8207.90.3030 as a gear cutting tool meeting the alloy criteria for chromium, molybdenum, tungsten, or vanadium. Essential for high-precision aerospace and transmission gear production.
Molybdenum Alloy Helical Gear Hob
Helical hob featuring molybdenum alloy cutting insert with over 0.2% molybdenum, optimized for continuous indexing gear hobbing of helical gears. HTS 8207.90.3030 applies due to its gear cutting purpose and elevated alloy composition. Widely used in wind turbine and heavy machinery gear manufacturing.
Vanadium-Enhanced Spur Gear Milling Cutter
Indexable insert milling cutter for spur gears, containing over 0.1% vanadium in the cutting edges for enhanced wear resistance. Meets HTS 8207.90.3030 criteria as a gear cutting tool with qualifying alloy elements. Applied in CNC machining centers for batch gear production.
Single-Start Gear Hob for Module 2 Gears
Single-start hob designed for module 2 spur gears, constructed from alloy steel with 0.25% chromium and 4% molybdenum. Falls under HTS 8207.90.3030 as a specialized gear cutting hob exceeding alloy limits. Used in small gear production for appliances and tools.