X-Depth 0 - 22"/558mm Depth Gage - Inch & Metric Reading • 0 - 1"/0 - 25mm travel indicator • 0.001"/0.01mm graduations • Rods connect together for full 22"/558mm capacity • Satin chrome finish • Base size: 4" • Includes 2 extra points for small hole applications; one 0.078" dia. x 1" long and one needle point x 1" long