Bosch Starlock Power Oscillating Tool Accessories deliver a three-dimensional fit designed to provide a completely integrated system between multi-tool and this multitool blade pack. This is a new dimension in torque for oscillating multi-tools. By using a three-dimensional shape instead of a flat interface, Starlock provides the highest-torque transfer, reduced vibration and the ability for higher performance applications. These accessories continue to be OIS compatible and fit existing oscillating power tools, as well as the next generation of high-performance Starlock tools. Bosch oscillating multitool blades are Swiss made for precision accuracy and long life in the most demanding professional applications. Bosch has a heritage of innovation – including the SDS-plus and SDS-max shank systems for concrete hammers and the T-Shank professional blade standard interface for jig saws. The Starlock interface is the new professional standard in multipurpose oscillating tool systems