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Tooling Supplier

for the UK & Ireland

Thread Gauges

Metric <M150, UNC, UNF, NPT, NPTF, BSP, Whitworth, PG & Trapezoidal Thread Gauges

Metric Coarse Thread Gauges
Category Metric Coarse Thread Gauges
Metric Fine Thread Gauges
Category Metric Fine Thread Gauges
BSP Thread Gauges
Category BSP Thread Gauges
PG Thread Gauges
Category PG Thread Gauges
UN Thread Gauges (UNC/UNF)
Category UN Thread Gauges (UNC/UNF)
NPT/NPTF Thread Gauges
Category NPT/NPFT Thread Gauges
Trapezoidal Thread Gauges
Category Trapezoidal Thread Gauges
Whitworth Thread Gauges (BSW/BSF)
Category Whitworth Thread Gauges (BSW/BSF)
UNJC Thread Gauges
Category UNJC Thread Gauges

For best quality practise, go and no-go thread gauges should be used together.  Go thread gauges are used for gauging the effective diameter of the thread. If the go thread gauge fits the thread, the work piece should be accepted. The no-go thread gauge is an oversized gauge also used for gauging the effective diameter of the thread.  If the no-go thread gauge fits the thread, the work piece should be rejected.   Thread gauges do not measure a thread, they simply check that the thread fits between the given tolerance of the specified thread.

Cutwel stock a wide range of go and no go thread gauges from JBO (Johs Boss) and Insize. We offer go and no-go gauges thread ring gauges and thread plug gauges in all major thread types including metric coarse, metric fine, UNC, UNF, NPT, NPTF, PG, BSF, BSW (whitworth), Trapezoidal and BSP (British Standard Pipe).  Our range of thread gauges are also available in TiCN coating and different tolerance levels (please contact us for prices).   UKAS calibration is available with a 5 day lead time. Buy now from our fantastic range.