.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
Ball point pen is called ball pen in India
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.
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.
A ball point pen has about a kilometre of ink in it, or it did when my mum was alive anyway...
ballpoint pen is a writing instrument. donkey