Oshlun MMA-0310 Standard HCS Oscillating Tool Blade with Uni-Fit Arbor for Fein Multimaster, Dremel, and Bosch, 1-1/3-Inch, 10-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. Standard High Carbon Steel (HCS) Teeth Designed for wood and plastic Steel holder Laser etched depth gauge