Features: 1.Tungsten Steel Ball Head: tungsten steel polished ball head durable and not easy to fall off 2.Stainless Steel Shaft: stainless steel polished club durable not easy to oxidize and rust precise and non-magnetic 3.Metal Lacquer Base: Strong-magnetic base suction up to 20g solid as a mountain 4.Widely used: can be used for CNC machining EDM wire cutting turning high-speed machining grinding etc. 5.CNC machining a test tool to determine the center position of the workpiece being machined. It is mounted on the spindle or table of the machine tool. As a probe for workpiece contour if you want to mass-produce a part you can make a standard part install it on the workbench and then use the edge finder to probe the contour coordinates and store them. Then the next time the workpiece is clamped the coordinate value can be used as a reference to correct the installation position of the workpiece so as to ensure that the deviation between the feed position and the coordinate setting is within the theoretical deviation range of the machine during each machining. And improve the installation and adjustment efficiency