Portable circular saw guide with adjustable protractor for accurate angle cuts. Pre-set quick adjustment for 90deg and 45deg cuts.

• Adjustable to any angles from 20-160° 
• Pre-set quick adjustment for 90deg and 45deg cuts
• Able to turn over to use on wider material.
• Easy-to-read white graduation board 
• Hard-to-break, new metal type stopper screw Flat folding screw