STI-BSW/BSF (Whitworth / brit. fine)

STI-Precision Thread plug gauge BSW/BSF

1. Before installing the V-COIL wire thread insert for british Whitworth threads: Inspection of a holding thread cut with an STI screw tap using an STI precision thread plug gauge.

2. Testing the dimensional accuracy of a V-COIL wire thread insert installed in the holding thread with a precision thread plug gauge for standard threads.

• British Whitworth thread for V-COIL wire thread inserts
• Gauge dimensions acc. to works standard (BS 919-2)