Those are too good for workshops... maybe for office use... not criticism, but for an office, a letter openner instead of the scribe would have nailed it.

I had a couple of those pen/cils in my workshop but kept loosing them amongst the timber... still finding "new" old ones occasionally.
Have gone a la Moke and surrendered to my acrylic side as it is hard to get red,

in timber without a generous amount of bloodshed. 

If your first cut is too short... Take the second cut from the longer end... LBD