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|  Outer Diameter:  |  From 6mm-120mm or as your request;  Set including: OD20mm, 35mm, 40mm, 50mm, 68mm | 
|  Length:  |  60mm with M14, 5/8"-11 thread.  65 or 80mm with hex shank. Other specification can be made upon you request. | 
|  Shank type:  |  M14, 5/8"-11, Hex shank, Round Shank, Hex Quick release shank.  |