Countersink angle: 90° for clean
Their solid design with an integrated O-ring provides enhanced sealing and helps prevent the ingress of coolant or other contaminants into the tool holder
Precise metric fine GO threading (M2
it carries ISO H5 tolerance (D = -0 +0
reliable link between tool holders and cutting tools while enabling powerful through-coolant performance
JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 6e - M28 x 2 Widin New Countersink angle: 90° for cleanThe JBO Thread Ring Gauge (NoGo) Metric Fine, Right Hand, M28 x 2 is a precision tool for verifying external thread diameters on fasteners, fittings, and other threaded components. Its ideal for engineers, machinists, quality control professionals, and workshop teams who need fast, reliable pass fail checks against exact thread sizes. Built from hardened steel, it offers durable, wear resistant performance in demanding environments, with a precise