Jigs and fixtures
Parts and accessories suitable for use solely or principally with the machines of headings 8456 to 8465, including work or tool holders, self-opening dieheads, dividing heads and other special attachments for the machines; tool holders for any type of tool for working in the hand: > Work holders: > Other > For metalworking machine tools: > Jigs and fixtures
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 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 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(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 8466.20.80.20
Quick-Change Modular Fixturing System
Steel modular fixturing plates and locators with quick-release pins for rapid workpiece changes on machining centers (8459). Classified 8466.20.8020 as jig system for metalworking efficiency. Reduces setup from hours to minutes in job shops.
Precision Aluminum Milling Jig
A custom-machined aluminum jig designed to securely hold metal workpieces during CNC milling operations on machines like vertical machining centers (heading 8459). It features adjustable clamps and locating pins for repeatable positioning, classified under HTS 8466.20.8020 as a work holder jig specifically for metalworking machine tools. This ensures precise alignment and reduces setup time in high-volume production.
Steel Welding Fixture for Engine Blocks
Heavy-duty steel fixture with pneumatic clamps to position and secure automotive engine blocks during robotic MIG welding on specialized welding machines (heading 8468, but accessories tie to 8456-65). Classified as a jig under 8466.20.8020 for metalworking due to its role in holding ferrous metal parts precisely. Used in assembly lines for consistent weld quality.
CNC Drilling Jig for Aerospace Titanium Parts
High-precision jig made from tool steel with hardened bushings to guide drills on titanium aerospace components in CNC drilling machines (heading 8459). Falls under HTS 8466.20.8020 as a fixture for metalworking machine tools, enabling hole pattern accuracy within 0.001 inches. Critical for aircraft structural manufacturing.
Modular Vise Fixture for Horizontal Machining Centers
Modular steel vise system with quick-change base plates for holding multiple small metal parts on horizontal machining centers (heading 8459). Classified under 8466.20.8020 as a jig/fixture for metalworking due to its work-holding function in precision machining. Ideal for high-mix, low-volume production.
Custom Steel Clamping Fixture for 5-Axis Mills
Tailored steel fixture with hydraulic clamping for complex 5-axis milling of aluminum die-cast parts on advanced CNC mills (heading 8459). HTS 8466.20.8020 applies as a specialized jig for metalworking machine tools, supporting multi-angle access without repositioning. Used in mold and die production.
Tombstone Fixture for Vertical Turning Lathes
Multi-station tombstone fixture from cast iron to hold large metal rings on vertical turning lathes (heading 8458). Serves as a jig under 8466.20.8020 for efficient metalworking setups, allowing simultaneous operations on multiple faces. Common in heavy industry like wind turbine components.
Pallet Clamping Jig for HMC Pallet Pools
Aluminum pallet jig with zero-point mounting system for horizontal machining center (HMC) pallet changers, securing workpieces during automated metal machining (heading 8459). HTS 8466.20.8020 as fixture for metalworking tools, enabling lights-out manufacturing. Features kinematic couplings for repeatability.
Angle Plate Fixture for Surface Grinders
Precision-ground cast iron angle plate used as a fixture to hold irregular metal parts at angles on surface grinders (heading 8460). Under 8466.20.8020 as basic jig for metalworking flatness finishing. Essential for toolroom grinding operations.
Vacuum Workholding Fixture for Thin Metal Sheets
Aluminum vacuum fixture with zoned vacuum ports to hold thin sheet metal without distortion during CNC milling (heading 8459). HTS 8466.20.8020 as specialized jig for delicate metalworking applications. Prevents part movement and warping.
Gauge Block Holding Fixture for CMM Setup
Fixture plate with kinematic mounts to hold gauge blocks and standards during setup on machining centers before precision metal operations (8459). Under 8466.20.8020 as metalworking jig for metrology integration. Ensures workpiece datum accuracy.
Heavy Duty Steel Sub-Plate for Boring Mills
Massive steel sub-plate with T-slots and dowel holes to distribute clamping loads on large parts in horizontal boring mills (heading 8459). HTS 8466.20.8020 as foundational fixture for heavy metalworking. Supports tons of workpiece weight.