Oshlun MMA-4201 Tapered Sealant Cutter with Uni-Fit Arbor for Fein Multimaster, Dremel and Bosch, 1-Pack 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 Stainless Steel Construction Sharp Edge for Fast Sealant Removal Tapered for Deep Joints