BIT SQ 25mm Size 1 SCR 3.5mm Professional-grade square drive bit designed for precision fastening applications. This 25mm length bit features a Size 1 square drive compatible with 3.5mm screws, delivering reliable torque transfer and minimal cam-out during installation. Engineered for durability in demanding electrical and construction environments, it resists wear and maintains consistent performance across repetitive use. Ideal for contractors and technicians requiring dependable bit performance on high-volume projects.