JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 4h - M38 x 2 Hex Key Drill Chuck The left-hand spiral flute and

The left-hand spiral flute and right-hand cutting enable controlled material removal and a consistently smooth bore finish

while the secure taper shank reduces setup time and improves alignment in fixtures

Unequal Index Flutes for Efficient Chip Evacuation: The staggered flute design reduces built-up edge and sweeps chips away quickly

This straight shank reamer features a spiral flute and HSS (M2) construction

Carbide (K10) construction: Delivers longer tool life and stable performance under demanding cutting conditions

JBO Thread Ring Gauge (NoGo) - Metric Fine - Right Hand - 4h - M38 x 2 Hex Key Drill Chuck The left-hand spiral flute andThe JBO Thread Ring Gauge (NoGo) Metric Fine Right Hand 4h M38 x 2 is a precision inspection tool designed to verify external threads on fasteners, bushings, and machined components. Its ideal for engineers, machinists, quality inspectors, and shop personnel who need reliable go no go checks to confirm threads meet exact size and pitch. Crafted from hardened steel for durability in demanding environments, this gauge maintains consistent accuracy over