Volkel Thread gauges STI Thread plug gauges
STI Thread plug gauges
Even when repairing threads with V-COIL wire thread inserts, it is often necessary to check that the cut holding threads are true to gauge before installing the wire thread inserts..
STI = Screw Thread Insert
As the holding threads cut with V-COIL STI screw taps are dimensioned specifically for the wire thread inserts, thread plug gauges for standard threads cannot be used for this purpose. Only the special STI precision thread plug gauges must be used.
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Volkel Precision Thread Plug Gauge Tol. 2B Unified coarse STI-Thread UNC No. 2 – UNC 1.1/4
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Volkel Precision Thread Plug Gauge Tol. 2B Unified fine STI-Thread UNF No. 4 – UNF 1.1/4
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Volkel Precision Thread Plug Gauge Tol. 2B Unified STI-Thread UN 1.1/8×8 – UN 1.1/4×8
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Volkel Precision Thread Plug Gauge Tol. ISO1 (4H) metric STI-Thread M 2 – M 33
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Volkel Precision Thread Plug Gauge Tol. med. British Standard Fine STI-Thread BSF 3/16 – BSF 1″
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Volkel Precision Thread Plug Gauge Tol. med. STI-Pipe Thread G (BSP) 1/8 – G (BSP) 1″
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Volkel Precision Thread Plug Gauge Tol. med. Whitworth STI-Thread BSW 1/8 – BSW 1″
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