Allen Lead Gauges are designed to check lead error on internal and external threads quickly and accurately. The gauges are used with contact points which can be set at 1/2″, 1″, 2″, 3″, or 4″ intervals allowing per-inch or cumulative errors to be measured. All gauges feature reverse tension of the moveable contact point that simplifies handling on buttress thread types, allowing measurements to be taken against the 3° flank in the same manner and ease as with any other thread.
I have two available and the price is for each.
Website with more Info:
https://detercoonline.com/product/5690-o-internal-lead-gauge-1-2/
I buy, sell, and trade all kinds of stuff, including industrial tools, machines, and equipment, trades welcome.
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