JBO Thread Ring Gauge (GO) - BSP (G) - Left Hand - Tol. A - 3/8 x 19 Tapping Chucks even when cutting hardened mold

even when cutting hardened mold steels and die materials

Through coolant with left-hand spiral flute: efficient chip evacuation and cooling during cutting

consistent surface finish on reamed holes

minimizing runout and delivering repeatable hole sizes for consistent part quality

aligning with BS 328/4 standards and ensuring interchangeability

JBO Thread Ring Gauge (GO) - BSP (G) - Left Hand - Tol. A - 3/8 x 19 Tapping Chucks even when cutting hardened moldJBO Thread Ring Gauge (GO) for BSP (G) threads, Left Hand, Tol. A, 3 8 x 19, is a precision tool designed to verify external thread diameters on pipe fittings and connectors. This go style gauge helps inspectors and technicians quickly confirm that threads match BSP (G) standards and will seal properly when installed. Ideal for plumbing, fluid handling, and engineering environments, the gauge supports accurate, repeatable checks across job sites and