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repeatable fit between spindle and tool
while durable HSS-E construction supports consistent results across materials
the JBO GO gauge gives you confidence in your measurements and a dependable foundation for quality across production runs
with a maximum speed rating of 15
reliable inspection of metric fine threads
JBO Thread Plug Gauge - UNJC Go-No/Go - Right Hand - 3B - 1/4 x 20 Milling Cutter Arbors repeatable fit between spindle andThe JBO Thread Plug Gauge is a precision go no go tool designed to verify UNJC threads in drilled or tapped holes. Sized for 1 4 x 20 threads and right hand orientation, it helps machinists, inspectors, and technicians quickly confirm that threaded holes meet the Unified thread standard without guesswork. Its compact design makes it a essential addition to any quality control station in manufacturing, automotive, aerospace, and maintenance
