Mitutoyo 178-390 Standard Detector for the Surface Testers, 4mN Brand: Mitutoyo ID#: 178-390-MIT |MFGID: 178-390 Sale Sale Price: $425.73 Prices and discounts good only while Supplies Last. Quantity discounts available QuantityPrice In Stock Return Policy Qty -+ Add to Cart Request Info Questions?CallCall Us864.433.9771|Mon-Fri 8-5 EST Share Print Product Info Product Information Description Mitutoyo 178-390 Standard Detector for the Surface Testers, 4mN Detector used with Surface roughness testers in various applications. Diamond stylus tip for precision detection.