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The Grainger 5/16"-24 external threading die is made of high speed steel with a bright finish. It has 24 threads per inch and can thread materials up to 1/2" diameter. The die has a split design for easy starting and adjustable width. It comes with a plastic box for storage and has an overall length of 1-1/2". The die is manufactured in the USA and ideal for hand threading operations on lathes, mills, drill presses and more.
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