All working surfaces are hardened and ground Center finder Touch point sensor for CNC machine Precision non magnetic... Specially designed, 4mm detector Used in a milling machine to find the workpiece edgeAll working surfaces are hardened and groundTiN coating, hardness HRC65, wear resistance, high reuse accuracy,0., 005mmNo magnetic, prevent sticky dust, ensure measurement accuracySpecially designed, 4mm detectorRPM 400-600 Edge finders are used for locating the workpiece edges as well as height off sets. Center finders are used for locating the center of a workpiece. They operate... 45 days money back guarantee. No magnetic, prevent sticky dust, ensure measurement accuracy 11 home essential tools - the kit no home should be without | Ideal Home Center Point Finder Milling Machine Edge Finder Edge Finder CE420 Non-... – Grandado Edge Finder For Milling Machine