The 17 square head steel protractor is preferred by machinists, drafts people and mechanics for setting bevels and measuring and transferring angles.
Made of ground stainless steel for optimum accuracy.
Permanently etched graduations from 0 to 180 degree in opposite directions
Adjustable protractor arm locks into desired position with knurled thumb nut
3-3/8 in. x 2 in. head
6 in. adjustable protractor arm locks into desired position with knurled thumb nut
Square head.