Manufactured from hardened and polished steel to check BA, Whitworth and BSF, Acme and American Screw Threads. | Angles: 60? American and Metric, 55? Whit and BSF, 471/2? BA and 141/2? Acme.
Radius & Screw Gauges
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Produced from hardened and polished steel Designed to check BA, Whitworth and BSF, Acme and American Screw Angles: 60 American and Metric, 55 Whit and BSF, 47-1/2 BA and 14-1/2 Acme







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