This tool help calibrates alignment It ensures precise leveling and plumbness, allowing precise drilling and installation Equipped with ABS knob for adjusting length, providing flexibility in measuring size This allows you to easily adapt the tool to various project requirements The drilling positioning ruler is make of Wear-resistant printing prevents fading over time, thus maintaining measurement accuracy Features three set of positioning block for faster and more accurate drilling, marking tasks, increasing overall efficiency Ruler can be widely used in various working scenario such as carpentry, installing door handles, making shelves, cabinets, constructions, drawing, painting, Manufacturer: LiRRvb