Ball-nose geometry with 2 flutes and 6 mm shank: Ball-nose profiles deliver smooth radii on curved surfaces
HSS-E (M35 Cob) alloy for longer tool life: Enhanced wear resistance stands up to repeated use in metal drilling and reaming
and tight size tolerance for reliable results in standard holes
repeatable performance across jobs and materials in production and repair environments
Pitch: Fine pitch delivers improved surface finish and reduced cutting forces during roughing
JBO Thread Plug Gauge (NoGo) - Metric Coarse - Right Hand - 6H - M52 x 5 Die & Mould Collet Chucks Ball-nose geometry with 2 flutesThe JBO Thread Plug Gauge (NoGo) in Metric Coarse, Right Hand, 6H, M52 x 5 is a precision inspection tool designed to verify threaded holes meet exact specifications. It helps engineers, machinists, quality teams, and maintenance personnel ensure internal threads engage correctly and assemble reliably across a wide range of projects. Made from hardened steel for long life and repeatable results, this NoGo gauge withstands demanding shop environments