JBO Thread Plug Gauge - Pg Go-No/Go - Right Hand - Pg 21 x 16 Face Mill Arbors - Through Coolant while the left‑hand flute design

while the left‑hand flute design enhances chip clearance for a smoother cut

The Toolex Reamer — Taper Shank

and durable build translates into cleaner surfaces

delivering long tool life

while the strict DIN/ISO tolerances ensure repeatable

JBO Thread Plug Gauge - Pg Go-No/Go - Right Hand - Pg 21 x 16 Face Mill Arbors - Through Coolant while the left‑hand flute designThe JBO Thread Plug Gauge in a right hand Go No Go configuration provides fast, reliable verification of threaded holes to exact Unified thread standards. Designed for use across manufacturing, automotive, and aerospace environments, this gauge helps inspectors confirm whether a threaded hole accepts the correct thread size and pitch with confidence. Its straightforward Go No Go design lets you quickly distinguish conforming threads from non