Fm179; 16 Pc Oscillating Multitool Saw Blade Set for Use on Fein Multimaster Model: FM179 For use with Fein, CRAFTSMAN, Chicago Electric and more, see description for tool compatibility list Thick gauge metals and high quality manufacturing techniques insure superior wear tolerance and life Universal arbor allows multiple position settings for slip free operation at varying blade angles Contractors pack, profession selection of top blades used in job site construction duties Pack of 16 accessories, stock your toolbox and get the best per blade price