Schroder Square Recess Robertson Bit No.0 × 50mm

The Schroder Square Recess (Robertson) Bit No.0 is a precision screwdriver bit designed for square-drive fasteners commonly used in electrical and construction work. With a 50mm length and hardened steel construction, it delivers reliable torque transfer without cam-out or slippage. Ideal for electricians, panel builders, and maintenance professionals working with Robertson-drive screws.