1 - 9mm
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1.4 x 0.3mm Metric No Go Screw Ring Thread Gauge 6g£211.421.4 x 0.3mm Metric No Go Screw Ring Thread Gauge 6g
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1.4 x 0.3mm Metric Go Screw Ring Thread Gauge 6g£211.421.4 x 0.3mm Metric Go Screw Ring Thread Gauge 6g
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1.2 x 0.25mm Metric No Go Screw Ring Thread Gauge 6g1.2 x 0.25mm Metric No Go Screw Ring Thread Gauge 6g
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1 x 0.25mm Metric No Go Screw Ring Thread Gauge 6g1 x 0.25mm Metric No Go Screw Ring Thread Gauge 6g
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