Diameter 3"/4"/5" , Rubber/Plastic/Aluminum based, M14 Arbor
Attention：Please notice the thread.M14 is popular in Europe and 5/8-11 is popular in North America
Rubber body soft and strong, Cooper thread
Strong body provide longer
Can bear heavy duty working and a little flexible
Backer for diamond polishing pads, sanding disc, and some other Hook&Loop-backed grinding discs
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