Bosch 2-1/4 in. Caulk Knife Blade is designed to deliver exceptional performance with Bosch Starlock® oscillating multi-tool accessories. Featuring a unique three-dimensional fit, this blade provides a fully integrated system between the multi-tool and accessory, enabling the highest torque transfer and reduced vibration for demanding applications. Compatible with both OIS® tools and the latest high-performance Starlock® systems, this Swiss-made accessory ensures precision accuracy and long-lasting durability. Bosch’s heritage of innovation is evident in this advanced blade, setting a new professional standard for oscillating multi-tool systems. Model Number: