Instructables
Picture of office knife (two variations)
IMG_1416.JPG
IMG_1417.JPG
IMG_1419.JPG
IMG_1420.JPG
IMG_1421.JPG
IMG_1422.JPG
IMG_1423.JPG
danger.JPG
d.JPG
c.JPG
b.JPG
a.JPG
office knife
filing spine + wallpaper cutter

when you go out to the edge of
a snap-off sections
again sharply
Seven fractures may

+

In the second variant of the lower rail black wider, more
better support
EmcySquare2 years ago
Nice and Cheap !
If possible one could use two different colors for the spines: say white and red
You set the cutting edge facing the red spine to avoid accidental cuts and injuries
Vitizop (author)  EmcySquare2 years ago
:)
danger.JPG