JBO Thread Plug Gauge - UNC Go-No/Go - Left Hand - 2B - 3/8 x 16 Milling Cutter Arbors and light finishing work in

and light finishing work in prototyping

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

built to withstand the rigors of high-speed machining for steady

while the straight shank ensures stable alignment in common tooling setups

JBO Thread Plug Gauge - UNC Go-No/Go - Left Hand - 2B - 3/8 x 16 Milling Cutter Arbors and light finishing work inThe 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