This tough plastic protractor will measure both inside and outside angles and can be locked to transfer measured angles to mark the job. Small enough to get into tight places. Arms 85 x 150mm. Great for using on your job, but also very handy to use in setting up angles on your table saw, spindle moulder etc. Angles achieved over a 180 degree range makes this item very useful in the workshop.
This tool won an international award for innovation when released and is manufactured in Taiwan to very high standards. There are copies of this tool on the market that do not compare in quality to this tool and the price is still very reasonable. The etched and painted graduations laser-cut into the tough ABS plastic are accurate and can be relied on for accurate marking out.