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The GLOBAL CNC INDUSTRIES 8643Z .500 is a Type Z rotary tool holder bushing designed for use in drill press, turret, and gang-drilling applications where precise tool alignment and secure retention are required. With a 0.500 inch inside diameter and a 1.500 inch outside diameter, this bushing locates and supports rotating tooling within a tool holder body. The head thickness measures 0.750 inches, and the overall length under the head is 3.250 inches. Machinists and tool room technicians install this component when setting up multi-spindle or production drilling fixtures that demand repeatable tool positioning.
This Type Z bushing is suited for production machining environments including job shops, CNC drilling stations, and automated gang-drilling setups. The 2.875 inch slot length accommodates the locking mechanism typical of Type Z holder configurations. It is appropriate for use in both light-production and high-cycle tooling arrangements where consistent ID-to-OD concentricity is necessary to maintain hole quality and extend tool life.
Designed as an OEM-style replacement or direct-fit component for rotary tool holder systems requiring a Type Z bushing with a 0.500 inch ID and 1.500 inch OD.
Installation is performed by qualified machinists or tool room technicians. Power down and lock out the machine before removing or installing any tool holder bushing. Verify that the holder bore and bushing OD are free of burrs, chips, and contamination before seating the bushing to ensure proper fit and concentricity. Do not force the bushing into the holder with impact tools, as this can damage the seating surfaces or alter tolerances.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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