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The GLOBAL CNC INDUSTRIES 8603B .375 is a Type B rotary tool holder bushing designed for use in machine tool holder systems where precise bore alignment and secure tooling support are required. With a 0.375-inch inside diameter and a 1.5-inch outside diameter, this bushing provides a stable interface between the tool shank and the holder body. The head thickness measures 0.265 inches, and the length under head is 2.5 inches. Weighing 1.2 pounds, it is built for durability in production and job-shop environments. Machinists and CNC setup technicians are the primary installers of this component.
This Type B bushing is suited for rotary tool holder applications in CNC machining centers, lathes, and similar machine tool platforms. It fits installations requiring a 3/8-inch bore with a 1-1/2-inch outer diameter seating surface. The 2.5-inch length under head accommodates standard tool holder depths common in both production and toolroom settings. It is appropriate for use wherever a Type B bushing specification is called out in the tool holder assembly.
Designed as an OEM-style replacement or direct-fit component for rotary tool holder assemblies requiring a Type B bushing with a 3/8-inch ID and 1-1/2-inch OD.
Installation should be performed by a qualified machinist or CNC technician. Before installing or removing tool holder bushings, ensure the machine is fully powered down and all rotating components have come to a complete stop. Use appropriate hand tools and follow the machine manufacturer's torque and fitment guidelines for tool holder components. Inspect the bushing bore and seating surfaces for debris or damage before installation to ensure proper alignment and secure fit.
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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