RAB -- Rabbet
Measuring System:

Used for measuring inside, rabbet, or outside
dimension of moulding. Measures directly
in any position, front to rear. A slide is keyed
to the base which moves in line with blade.
Fixed to slide is an aluminum angle with
measuring tape. Slide scale to rabbet of
moulding and move material to desired
dimension. Move stop and clamp to that
point and lock. Gives both outside and rabbet
measurement. 6 foot (183cm) length standard;
10 foot (305cm) length available.
RAB

RAB