5/16"-18 UNC X 1-1/2" OD HSS Left Round Adjustable Die Quantity:1 Two wings on the base

Two wings on the base of the shank help it resist being twisted or pulled out of the handle during use

They are black and gold surface treated

Part Number: BIT-KFDA

Part Number: 75C225HCSSS/316

Hex Lag Screws A307 Grade A Zinc Clear

5/16"-18 UNC X 1-1/2" OD HSS Left Round Adjustable Die Quantity:1 Two wings on the baseProduct Description HSS Round Dies are for use in making new threads or re threading existing threads. They are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance. Round dies are chamfered on both faces, one side has a 2 to 3 thread chamfer for threading and the other side has a 1 to 1 1 2 thread chamfer for threading close to a shoulder. Adjustments are made by a fine pitch screw which