Features:
● There are two vertical end scales for drawing precision parallel lines relative to the edge of the board or other workpieces
● With micro-fine holes and slots at every scale position to instantly locate a 0.5mm pencil exactly on target
● The micro-fine holes are used to draw the horizontal or vertical line
● The micro-fine slots are used to draw the short horizontal or short vertical line
● Clear engraving scales, accurate and easy to read, help you to improve working efficiency

Note:
Recommend drawing with 0.5mm pencil, so you don't worry of parallax or angle slip