Precise: Perfect design makes the scribing surface fit into tight gaps to achieve the perfect fit on natural uneven surfaces. The scribing pen increases flexibility when scribing a variety of materials and textures for increased accuracy. Easy to use: With the lockable design, you can easily adjust the tightness of the pen holder and adjust the nut according to the shape you want. Then lock and fix the adjusting nut to achieve precise accuracy. Wide Application: It is a multifunctional scribing tool with a wide range of uses, perfect for scribing very complex profiles such as e.g. custom woodworking equipment, other remodeling and renovation work.