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The 3M 7100050705 is a wheel adapter kit designed to mount rubber slotted expander wheels onto standard angle grinders and straight shaft tools with a 5/8-11 internal thread. The kit provides all the hardware necessary to complete a secure, properly spaced wheel installation without sourcing individual components separately. It includes a 1 inch x 5/8-11 INT adapter, a matching end cap, a 1 inch diameter x 5/8 inch chamfer x 3/16 inch wide spacer, a 5/8-11 x 1-1/2 inch long socket head cap screw, and a 1/2 inch allen wrench. This kit is intended for use by grinding and surface preparation professionals working with abrasive wheel systems.
This adapter kit is suited for shops and field environments where rubber slotted expander wheels are used for deburring, surface blending, and finishing operations. The complete hardware set simplifies tool setup on compatible spindle configurations and supports consistent wheel alignment and clamping. It is appropriate for both maintenance technicians and fabrication professionals who regularly change or configure abrasive wheel assemblies.
Designed for use with 3M Rubber Slotted Expander Wheels, part number 28718. Verify spindle thread specification before installation.
Installation should be performed by a qualified technician familiar with abrasive wheel mounting procedures. Power down and disconnect the tool from its power source before mounting or removing any wheel or adapter assembly. Follow ANSI B7.1 and applicable workplace safety standards for abrasive wheel mounting. Do not exceed the maximum RPM rating marked on the expander wheel.
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