Emuge, 3/8-24 UNF 2XD Solid Carbide Thread Mill TiCN Spiral 3 Flute. 5/16” Weldon shank, .78” length of cut. 2.5” OAL. Made in Germany. Price is for one piece. Multiple pieces available. See my store for carbide inserts and other cutting tools. Make me an offer on multiple items. Shipped USPS First Class Package