The fastest and simplest tool for marking out com, jack, hip and valley cuts.

COM & JACK SCALE - Set scale to match the pitch of the roof
HIP & VALLEY SCALE - Set scale to match the pitch of the roof
COMMON 1–90° SCALE - On outside edge for all other angles, cuts and marks

Easy to read scale markings
True 90° angle
Lockable arm, either set to desired angle or set to zero and use as a normal quick square
0-170mm ruler on plumb edge