ClipArt ETC
A scriber block is used to layout lines at a set height from the base, thus its second name surface height gauge or just "surface gauge". The work piece is held against an angle plate so that it is perpendicular to the surface plate, the scriber block is then adjusted to the required height and used to scribe a line parallel with the table, by sliding the block along the table's surface.

Scriber Block

A scriber block is used to layout lines at a set height from the base, thus its second name surface…