JBO Thread Plug Gauge - UNF Go-No/Go - Right Hand - 2B - 1/2 x 20 FLH It’s well-suited for mold and

It’s well-suited for mold and die machining below 55 HRc

Shank: Straight shank for straightforward integration with standard collets and chucks

M2 HSS Construction and BS 328/4 Compliance: Delivers long tool life and reliable performance

wear-resistant construction: Crafted from high-quality materials to withstand demanding machining environments and provide long service life

Flute: Left-hand spiral flute with right-hand cutting for predictable chip formation and finishing action

JBO Thread Plug Gauge - UNF Go-No/Go - Right Hand - 2B - 1/2 x 20 FLH It’s well-suited for mold andJBO Thread Plug Gauge is a UNF Go No Go gauge designed to verify right hand internal threads of 1 2 x 20 with a 2B tolerance. Its dual ended design provides fast, clear go no go readings to confirm holes conform to Unified thread standards and specifications. Engineers, machinists, inspectors, and hobbyists rely on its precise dimensions and rugged construction for repeated use across manufacturing, automotive, and aerospace applications. The gauges