It is enhanced version of Wiring pencil Just kept wire bobbin holder as knock cap of sharp pencil.
You need your own sharp pencil as 0.7mm or 0.5mm version. Depending on diameter of wire guage.
My case is UEW 0.4mm wire on 0.5mm sharp pencil.
It is replacement of knock cap of sharp pencil as common.
Please utilize dia meter as your pencil.
PS:
Added another type of cap as PILOT_Rexgrip

• It is replacement eraser and eraser cap.

QIDITECH I

Yes

Doesn't Matter

0.2mm

30%

Using sawing machine thread bobbin. as standard one.