Specification： Material:Bim Coated: Titanium Length: 3-9/16inch(90mm) Blade Length: 1-3/8inch(35mm) Working Depth: 1-3/4inch(44mm) 1.it's not recommended to use this set for the tools of the starlock and starlock plus interface system,and MM30,MM40,MM50. 2.The universal interface system is designed to be compatible with more than 95% of the electrical oscillating tools on the market. Such as Milwaukee, Makita, Dewalt. More details are in the product description or contact us to confirm. .