| GENERAL CHARACTERISTICS ITEM DESCRIPTION | 4-WAY; MEASURES ANGLES DIRECTLY BETWEEN ANY TWO PLANES OR ANY NUMBER OF PLANES, SUCH AS SETTING A DETACHABLE BLADE TYPE PROPELLER ON AN AIRPLANE; CIRCLE AND PLATE VIAL ARE ACCURATE TO 45 MINUTES PER 2MM; VERNIER READS TO 6 MINUTES AND CAN BE SET TO READ ANGLES AT ANY POSITION |