JBO Thread Plug Gauge - UNC Go-No/Go - Right Hand - 2B - No. 1 x 64 G Its precise dimensions stay stable

Its precise dimensions stay stable even in busy workshops and demanding environments

57 mm and built from M2 high-speed steel

and hobbyists who require consistent hole sizes and a clean

this straight-shank carbide reamer delivers repeatable results and long tool life in a compact

making it suitable for toolmakers

JBO Thread Plug Gauge - UNC Go-No/Go - Right Hand - 2B - No. 1 x 64 G Its precise dimensions stay stableThe JBO Thread Plug Gauge is a precision UNC Go No Go tool designed to verify threaded holes to Unified standards. It enables quick, reliable pass fail checks on parts across manufacturing, automotive, and aerospace environments. Designed for right hand UNC threads and sized No. 1 x 64 (2B class), this gauge delivers consistent, trustworthy measurements for every inspection. Quick Go No Go Validation: Speed up inspections with clear pass fail cues