Johnson Level & Tool 1904-1200 Johnny Square Professional Easy-Read Aluminum Rafter Square, 12", Black, 1 Square -

This measuring tool has a solid aluminum body and CNC machined edges to provide a precise reading every time.

It is a long-lasting and flexible tool for builders and contractors.

EZ-READ FINISH: This metal square ruler features EZ Read laser etched graduations and numbers that are clearly visible.

When used as a saw guide, the EZ finish increases friction to help attach the square to your lumber.

SCRIBING NOTCHES: This square layout tool's continuous scribing notches are ideal for ripping at 1-1/2", 3-1/2"; and 5-1/2"; as well as markers that measure 2x4 board dimensions of 1-1/2", 3" and 3-1/2".

These also help in creating a saw cut line for rip cuts.

APPLICATIONS: This framing square's edge allows cross-cuts and angled cuts to be made directly with the saw against the square.

It simplifies stair layout with the built-in distance and angle scales that allow you to mark your cut lines on your stringers.