Specification Brand : MINI GROOVE 'N TURN Label : Kaiser Tool Company, Inc. Manufacturer : Kaiser Tool Company, Inc. MaterialType : Steel Model : MGT NumberOfItems : 1 PartNumber : MGT38 ProductGroup : BISS Basic ProductTypeName : CUTTING_TOOLS Publisher : Kaiser Tool Company, Inc. SmallImage_Height : 42 SmallImage_URL : https://m.media-amazon.com/images/I/31Ns6gV-lIL._SL75_.jpg SmallImage_Width : 75 Studio : Kaiser Tool Company, Inc. Title : THINBIT MGT38 Steel Internal Grooving and Threading Bar, 3/8" Diameter, 1.5" Reach, 0.450" Minimum bore