Steel Protractor, 6"/150mm, 0-180
Double graduations from 0-180 Deg in opposite directions permitting the direct reading of angles and supplementary angles
Provides four convenient working edges
Rectangular head
Satin chrome finish for ease of reading and resistance to rust
The back of the tool is flat for ease of use
The blade can be locked firmly at any angle by the lock nut
Useful and accurate tool for setting bevels, transferring angles, squaring tasks, checking cutter clearances, and many other applications