Pricing mentioned is for a KIT. Requires a minimum buy of 1 KIT. Arbor Diameter = 7/8 in; Used With=Right Angle Air Die Grinder or Cut Off Die Grinder; Type=Adapting Nut; Arbor Thread - TPI or Pitch=5/8 in - 11; Body Material=Steel; Hub Material=Zinc; Length=4 in; Mounting=Threaded Hole; Width=2 in; Thread - TPI or Pitch=5/8 in - 11;