Johnson 1904-0700V 7-1/4" Mach-1 Johnny Square Rafter Square with Level Vial OPE Pole Saw The patented corner design helps

The patented corner design helps preserve life and protect against nail impact

Rubber Joint Construction suppresses transmission of vibration to battery

A thin kerf design provides faster cutting performance

Reliability:

Johnson 1904-0700V 7-1/4" Mach-1 Johnny Square Rafter Square with Level Vial OPE Pole Saw The patented corner design helpsThe Johnson 1904 0700V Mach 1 Johnny Square represents the pinnacle of rafter square evolution, merging extreme precision with on site versatility. Engineered for professional framing carpenters and demanding trade professionals, this 7 1 4" solid aluminum square features an integrated, high visibility 320 degree level vial that allows it to double as a torpedo level for checking plumb and pitch. Its CNC machined edges ensure surgical accuracy to 0.