※Function: Spindle Tapered Threaded Adapter with 5/8"(16MM) arbor hole uses on 5/8" shaft motor or grinder. ※How to Use: The Spindle Adapter is easy to change polishing wheel, you need to do is use the center hole of the cotton wheel to align the tip of the shaft, turn the machine, and tighten it easily, will not drop off during use.
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