Spence Industries, Inc. is a leading manufacturer of Precision JO-PLUG tapped hole location gages since 1956. Their high-quality products are trusted by customers in industries such as aerospace, automotive, defense, electronics, and medical devices, thanks to their fast and accurate method of determining positional tolerance of threaded holes with repeatability and reproducibility.
With a solid thread form and pitch cylinders ground to the minimum pitch diameter, Spence Industries ensures that their JO-PLUGS meet American and international quality standards. These precision gages are made from wear-resistant tool steel, offering durability and reliability for various applications. Additionally, their online store provides quick access to a wide range of Unified, Metric, and Heli-Coil thread sizes for immediate delivery.
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