stainless steel and practical lightweight easy to carry and use. Flexible fixing nut, 360-degree Freeing , improve work efficiency. Provides high-precision and comfort during installation. High hole opening efficiency, accurate position. Provide multi-hole measurement with accurate measuring, reducing the time to draw the-line and find the position. Drill hole locator, adjustable opening position ruler, marble glass ceramic floor drilling tool. Anti-fall and ; different hole positions; Multi-directional is convenient and fast. One-button positioning for high opening efficiency; Accurate position to beautifully fix .