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

planned construction

Length: 18

and can cover up to 200 feet of working range

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