Bosch 3-1/4 in. Sealant Knife features the innovative Bosch Starlock® oscillating multi-tool accessories that deliver a three-dimensional fit, creating a fully integrated system between the multi-tool and the accessory. This advanced design a new level of torque for oscillating multi-tools by utilizing 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 are also OIS® compatible, fitting both existing tools and the latest generation of high-performance Starlock® tools. Crafted in Switzerland, Bosch multi-tool accessories ensure 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 standard for jigsaw blades. The Starlock® interface represents the new professional standard in oscillating multi-tool systems, making this sealant knife a reliable choice for your projects. Model Number: