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https://engineering-supplies.com/product/4038/o-1-2x20-unf-2a-go-no-go-screw-ring-thread-gauge-/
- Product: 1/2" x 20 UNF - 2A Screw Ring Thread Gauges
- Size: 1/2 x 20 tpi Unified National Fine
- Type: 1/2" UNF Go / No-Go Ring Gauge
- BS1580, BS 919 Part 1 Class 2A
- Options: Go or No-Go Ring
- UKAS Calibration adds 7 days see options box
- Part Number ES-4038
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£0.00
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