JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M38 x 1 ER Collet Chucks and it comes in a

and it comes in a 25

and predictable results from run to run

Taper shank (BS 328/4): Provides secure seating and accurate alignment in compatible tool holders

while the right-hand cutting edge ensures consistent material removal for a smooth bore finish

giving you the flexibility to tackle pockets

JBO Thread Ring Gauge (NoGo) - Metric Fine - Left Hand - 6g - M38 x 1 ER Collet Chucks and it comes in aThe JBO Thread Ring Gauge (NoGo) Metric Fine Left Hand 6g M38 x 1 is a precision inspection tool designed to verify external thread diameters quickly and reliably. Its ideal for machinists, quality inspectors, engineers, and shop floor personnel who need fast, confident pass fail checks on metric fine threads. Crafted from hardened steel for durability in demanding environments, this NoGo gauge resists wear and retains its precise dimensions through