Compatible with FEIN MultiMaster, Dremel Multi-Max, Bosch Max Multi-X, Craftsman NEXTEC, Skil Multi-Tasker, Milwaukee M12, oscillating tools with 3/8-Inch round arbors, and many more. Notes: Not compatible with FEIN SuperCut or Rockwell SoniCrafter * Premium Diamond * Designed for removing hard grout and tile adhesive * Design allows cutting into corners without damaging the adjacent material * Removal width is approximately 1/12-Inch