Manufacturer Part Number: DWTSR112-51630 <br /> <br />HSS, Round Adjustable Special Thread Sizes, Size: 5/1630Decimal Equivalent: .3125-30 Round Die <br /> <br />Other Details <br /> <br />Size: 5/16&quot;-30 <br />Material: High Speed Steel <br />Finish: Bright <br />Style: Round Die <br />Die OD&quot;: 1-1/2&quot; <br />Cutting Direction: Right Hand <br /> <br />