(You can adjust the opening and closing of the legs. A small gear compass that allows you to draw small circles stably.
This is a small type compass that is stable and easy to draw when drawing smaller circles.
You can fine-tune the leg opening and closing depending on the middle car, and it is also difficult to lose diameter, making precise circles.
Can draw circles from 6mm to 120mm.
Gear type that allows the legs to be opened and closed by gears Metal gear resists wear and tear due to leg opening and closing
You can also attach a compass sharp or ruler (immediately from the door) sold separately. The plug diameter is 0.1 inch (3.5 mm).
Accessories: HB core (0.08 inch (2 mm) x 2 and needle x 1 (Part case: 557 M2-25)