Square/Robertson claims to have less slippage and less prone to rounding out. That’s never held up in my experience. Torx has the same claims and outside of some user error, it’s held up for me.
It also doesn’t let the bit torque out when your driving into something hard like walnut or oak. In my furniture making days we exclusively used Robertson because the ability to stick a screw on the driver, and to know absolutely that you won’t slip out and gouge the workpiece.
Whats the advantage of 1 over the other?
Square/Robertson claims to have less slippage and less prone to rounding out. That’s never held up in my experience. Torx has the same claims and outside of some user error, it’s held up for me.
Square/Robertson bits hold the fastener tightly so they don’t fall off when starting to drive them. Star/Torx doesn’t hold as well.
It also doesn’t let the bit torque out when your driving into something hard like walnut or oak. In my furniture making days we exclusively used Robertson because the ability to stick a screw on the driver, and to know absolutely that you won’t slip out and gouge the workpiece.
Great point!