Specification Binding : Misc. Brand : Burkit Color : Silver Label : Burkit Store Manufacturer : Burkit Store Model : 5/16"-18 UNC PackageDimensions_Weight : 0.156250 PackageDimensions : L:5.10 X W:4.30 X H:0.55 PartNumber : tap-set-5/16-18-UNC-RH ProductGroup : Home Improvement ProductTypeName : TOOLS Publisher : Burkit Store Size : 5/16"-18 UNC SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/31O5xzihuxL._SL75_.jpg SmallImage_Width : 75 Studio : Burkit Store Title : Burkit 5/16"-18 UNC Tap and Die Set, 5/16 x 18 UNC Machine Thread Tap and Round Die Right Hand Weight : 0.2 WeightUnit : pounds