Bosch 1-1/4 in. Bi-metal Xtrclean Plunge Bld features Bosch Starlock® oscillating multi-tool accessories designed to provide a three-dimensional fit that ensures a fully integrated system between the multi-tool and accessory. This innovative design introduces a new level of torque for oscillating multi-tools by using a three-dimensional shape instead of a flat interface, resulting in the highest torque transfer, reduced vibration, and enhanced performance for demanding applications. These accessories maintain compatibility with OIS® tools and fit both existing and next-generation high-performance Starlock® tools. Crafted in Switzerland, Bosch multi-tool accessories deliver precision accuracy and long-lasting durability for professional use. Bosch’s legacy of innovation includes pioneering shank systems like SDS-plus® and SDS-max® for concrete hammers and the T-Shank professional blade standard for jigsaws. The Starlock® interface sets the new professional standard for oscillating multi-tool systems. Model Number: