JBO Thread Ring Gauge (GO) - Metric Coarse - Left Hand - 6g - M45 x 4.5 Boring Bar Blank The go/no-go design provides clear

The go/no-go design provides clear

the unequal index flutes promote excellent chip emission and help achieve a smoother workpiece surface finish

ideal for machinists and workshops needing reliable

Taper shank design for secure

accurate go/no-go results

JBO Thread Ring Gauge (GO) - Metric Coarse - Left Hand - 6g - M45 x 4.5 Boring Bar Blank The go/no-go design provides clearThe JBO Thread Ring Gauge (GO) Metric Coarse Left Hand 6g M45 x 4. 5 is a precision inspection tool designed to verify external threads on metric coarse, left hand components. Its ideal for engineers, buyers, tradespeople, and quality teams who need a fast, accurate check to confirm parts meet the M45 x 4. 5 specification. Manufactured from hardened steel for durability and wear resistance, this GO gauge is built to withstand demanding shop