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The VALUE COLLECTION 210-5204 is a CAT50 to R8 taper adapter designed for milling machine spindle tooling applications. It accepts a CAT50 outside taper connection and provides an R8 inside taper, allowing R8-shank tooling to run in CAT50-spindle machines. With a 4-inch projection and overall length of 9.21 inches, this adapter maintains proper tool reach while keeping the assembly rigid. Weighing 8 pounds, the unit is built for the load demands of production milling environments. Machinists, tooling setup technicians, and CNC operators install this type of adapter when bridging two different taper standards on a single machine setup.
This adapter is suited for vertical milling machines and machining centers equipped with CAT50 spindles that require R8-shanked tooling, such as collet chucks, end mill holders, or boring heads with R8 shanks. It is applicable in job shop, tool room, and light production environments where mixed tooling inventories are common. The 4-inch projection accommodates standard R8 tooling engagement depth while providing clearance for the workpiece or fixture.
Designed as an OEM-style replacement and application adapter for CAT50-spindle milling machines requiring R8-shank tooling. No specific machine model compatibility was provided in the product data.
Installation of taper adapters should be performed by a qualified machinist or tooling technician. Power down and lock out the machine spindle before inserting or removing any tooling adapter. Ensure both the CAT50 taper bore and the adapter shank are clean and free of chips, burrs, or oil before seating to prevent fretting and runout. Verify drawbar engagement and torque per the machine tool manufacturer specifications before resuming cutting operations.
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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