JBO Thread Plug Gauge - UNC Go-No/Go - Left Hand - 2B - 3/8 x 16 Milling Cutter Arbors while the straight shank ensures

while the straight shank ensures stable alignment in common tooling setups

2 corner radius provides flexibility: you can produce sharp internal corners or gentle radii as your design requires

this reamer integrates smoothly into standard metalworking workflows

Left-hand spiral flute + right-hand cutting: Provides controlled cutting action and efficient chip evacuation for smoother hole finishes and reduced workpiece lift

which translates to better part finishes and reduced secondary processing

JBO Thread Plug Gauge - UNC Go-No/Go - Left Hand - 2B - 3/8 x 16 Milling Cutter Arbors while the straight shank ensuresThe JBO Thread Plug Gauge is a precision inspection tool designed for verifying UNC left hand thread holes. Use it to quickly check 3 8 x 16 threaded holes in manufacturing, automotive, and aerospace applications, ensuring parts meet documented thread standards. Its go no go design provides immediate feedback, helping technicians confirm proper fitment and reduce rework on the shop floor. Go No Go quick check for UNC left hand threads: Two ends enable