管角水平仪

TYPE ：
 M ： With Magnet at the bottom
  V ： Wth" V " shape at the bottom

Dial Gauge Angle Finder
No fooling around with clumsy protractors and manual angle finders - the indicator points right to the number.
Check angles from 0 to 90°
Accurate to 0.5°
Magnetically attaches to metal squares for easier reading
Can be mounted to nonmetallic squares with self-threading screws (sold separately)
Includes conversion chart for determining pitch per inch and foot