Johnny Metric Easy-Read Aluminum Rafter Square 40-6543 that has a tolerance of

that has a tolerance of just ±1/8" at 30ft for the laser lines and ±9/32€ for the laser points

The included pocket reference guide will help you use the calculator to its full potential

and can cover up to 200 feet of working range

The handle has Calculated Industries' signature pistol grip handle that make maneuvering really easy

It can also be used as a check rod to ensure the flatness of whatever surface you’re working on

Johnny Metric Easy-Read Aluminum Rafter Square 40-6543 that has a tolerance ofJohnson Level 18cm Johnny Square features a solid aluminum body with CNC machined edges for greater accuracy and durability. The EZ Read laser etched graduations have numbers that are highly visible and has a thick edge that is useful as a saw guide. The new Johnny Square allows fast accurate markings for rip cuts with carpenters and targeted end users. It has a continuous scribing notches from 2cm to 12cm. The 18cm Metric Johnny Square Professional