.32mm Anything which is 0.00 is going to be smaller than 1mm.
.5mm is finer than .7 mm
0.5
ball-point pen: sphere
For ball-point pens, the tip of the pen is actually made of a ball bearing, and so the tip of the ball-point pen would be a point until it is worn or not manufactured properly, in which case it might be abit flattened.
Ball point pen is called ball pen in India
The point of a pen is typically referred to as the nib or tip.
The quill pen, the fountain pen and then the ball point pen.
Tagalog translation of BALL-POINT PEN: pluma
A ball point pen point is made of a small metal ball.
The first ball point pen was made by Laszlo Biro.
NO Laszlo Biro did not invent anything else besides the ball point pen. He invented the ball point pen in 1938.