JBO Thread Ring Gauge (GO) - Metric Coarse - Left Hand - 6g - M27 x 3 FMH Long reach for deep milling:

Long reach for deep milling: The 70mm length lets you access deep pockets and complex contours

Left-hand spiral flute with right-hand cutting: Optimizes chip control and material removal for smoother finishing and improved bore cleanliness across challenging materials

Defined corner radius (R0

This end mill supports efficient workflows in mold and die projects

1 for Durable Edges: Provides a protective corner radius that reduces chipping and wear

JBO Thread Ring Gauge (GO) - Metric Coarse - Left Hand - 6g - M27 x 3 FMH Long reach for deep milling:The JBO Thread Ring Gauge (GO) is a precision inspection tool designed to verify external metric coarse threads. Sized for M27 x 3 and configured for left hand threads, this GO gauge enables quick, pass fail checks that help ensure parts meet exact thread standards. Manufactured from hardened steel for lasting durability, it resists wear in busy workshop environments and maintains accurate measurements through heavy use. The left hand, metric coarse