JBO Thread Ring Gauge (NoGo) - UNJC - Right Hand - 3B - No. 2 x 56 Tapping Chucks Nominal diameter: 27

Nominal diameter: 27

Coating: TiAlN coating to boost hardness and heat resistance

ISO H5 tolerance for precise bores: 0 to +0

The slotted design provides versatile compatibility

and d1 = h8 — delivers consistent bore size and interchangeability for repeatable results across batches

JBO Thread Ring Gauge (NoGo) - UNJC - Right Hand - 3B - No. 2 x 56 Tapping Chucks Nominal diameter: 27JBO Thread Ring Gauge (NoGo) UNJC Right Hand 3B No. 2 x 56 is a precision inspection tool designed to verify external thread diameters against Unified thread standards. Intended for manufacturers, automotive shops, aerospace suppliers, and quality teams, it provides a clear, quick pass fail check to confirm parts meet spec. Built for durability and consistent results, this NoGo gauge helps identify non conforming threads early in the production or