JBO Thread Plug Gauge - UNF Go-No/Go - Right Hand - 3B - No. 2 x 64 Morse Taper Adaptor Material: HSS‑E (high-speed steel with

Material: HSS‑E (high-speed steel with cobalt) for improved hardness and heat resistance

Through coolant with optimized flute geometry: Through-coolant design aids chip evacuation and cooling

The secure clamping helps maintain part accuracy

3-flute square-end cutter designed for demanding milling tasks and hard materials up to HRc55

Flute & cutting: Left-hand spiral flute with right-hand cutting and a six-flute stub design for stable hole finishing and efficient swarf removal

JBO Thread Plug Gauge - UNF Go-No/Go - Right Hand - 3B - No. 2 x 64 Morse Taper Adaptor Material: HSS‑E (high-speed steel withThe JBO Thread Plug Gauge is a precision Go No Go tool designed to verify UNF threaded holes. Sized No. 2 x 64 with Right Hand threading and a 3B tolerance, its built for professionals across manufacturing, automotive, and aerospace who need quick, reliable thread verification. Its dual end design lets you check both the Go and No Go limits in a single test, delivering fast pass fail feedback and helping ensure proper thread engagement during setup,