JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 4h - M55 x 2 Widin New This reamer finishes drilled holes

This reamer finishes drilled holes to ISO H4 tolerance with HSS-E tooling

Through-coolant design: Coolant is channeled through the tool to improve chip evacuation and extend tool life

you can streamline setup

you’ll experience steady cutting forces and predictable performance across a range of CNC setups

this reamer requires a brief 24/48 hour despatch window

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 4h - M55 x 2 Widin New This reamer finishes drilled holesThe JBO Thread Ring Gauge (NoGo) Metric Fine Right Hand 4h M55 x 2 is a precision external thread gauge designed to verify that threaded components meet exact metric fine thread specifications. Its an essential tool for machinists, inspectors, and quality teams who need fast, reliable go no go checks to confirm correct thread dimensions. Crafted from hardened steel for durability in busy workshops, this NoGo gauge resists wear and maintains accurate