Johnson 1904-0700V 7-1/4" Mach-1 Johnny Square Rafter Square with Level Vial DEWAL crevice tool

crevice tool

and ergonomic use

in a bind up situation

Positioning on both the planer table & the tool holder body with detection of the knife position

1 large back D-ring

Johnson 1904-0700V 7-1/4" Mach-1 Johnny Square Rafter Square with Level Vial DEWAL crevice toolThe 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.