This is a set of 4.9mm ball ends made of strong and high-precision hard steel. The screw part is shorter than the 5mm ones. The ball surface is smoother than that of the conventional one (T049), yet sold at a competitive price.

This is a set of 4.9mm ball ends made of strong and high-precision hard steel. The screw part is shorter than the 9mm ones. The ball surface is smoother than that of the conventional one (T051), yet sold at a competitive price.