Parametric Edge Scribe Tool.

Every dimension can be parametrically modified:

• hole diameter (insert diameter of the pencil/pen/marker; important note: insert larger diameter in case the profile is not circle, e.g. for the six sided pencil),
• hole diameter clearance (the default is 0.1mm for snug fit),
• distance (insert the distance from the edge you want to scribe),
• height (insert the height of the tool; higher tool holds the pencil/pen/marker more securely),
• length ("left" and “right” extra length; this increases the contact surface area of the scribe too with the material you want to scribe with, reducing the change it tilts),
• lip height (insert the height of the lip that follows the edge of the material)

Default profile has scribe tool with 12.5mm distance and 7.5mm hole diameter (with 20mm and 32mm height).