Fasten Robertson square-recess screws with full control and no cam-out using the Facom ECAR.101 screwdriver bit. The NO.1 square drive profile delivers a secure fit and efficient torque transfer, eliminating the frustrating slippage common with standard screws. With its compact 25 mm length, this bit gives you optimal handling and access in tight spaces during carpentry, cabinetry or maintenance tasks. The standard 1/4" hex shank fits smoothly into your bit holder for reliable manual fastening, helping you complete every job with precision and confidence.