1、Easy Line Drawing: With adjustable positioning blocks and double points for positioning, the woodworking compass tool provides fast and easy operations for precise line drawing. 2、Convenient and Safe: The built in line drawing steel pin on the side of the ruler safely stores away, providing a neat and convenient usage experience. 3、Unique Design: With a simple knob twist, the line drawing steel pin retracts and merges with the pointer. This dual needle design offers a safe and convenient needle storage. 4、Adjustable Limit Module: The sliding block positioning can be adjusted by simply rotating the nut. This enables more accurate line drawing with the woodworking compass scriber. 5、Clear Scales: Providing 2 types of scales in both centimeters and inches to meet different needs, the metal marking gauge features clear, easy to read, and reliable markings. 6、Easy To Use: By inserting the steel pin directly into the edges of the positioning block hole, quick positioning and line drawing are easily achieved with the woodworking ruler .