Facilitates the assembly procedure
Clamping tilt is minimized by ball end and subsequent joint tilt
The tendency to jam, caused by the locating hole not being at right angles to the pin or by the pushing force not being parallel to the pin axis, is minimized by the ball-end form.
Tool steel or 1.4305 stainless steel.
Steel hardened and ground.
Stainless steel ground and kolsterised.