Threading Tool, Int / Ext, 1/2" Indexable HSS Triangle Inserts, A R Warner Kit #18

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This A.R. Warner precision HSS threading tool will turn both internal and external threads. You can mount inserts on both ends. One end mounts the insert at the end of the tool for external threading. The mount on the other end is offset. Mount the insert one way for internal threading. Turn the insert around and you can use the tool for external threading too.The minimum bore diameter for internal threading is 1.375". The maximum thread depth of this internal and external threading tool is 0.100".The Arthur R. Warner Co. is a family-owned American manufacturer of high speed steel products with specialization in cutting, shaping, pre-grinding, heat treating, and finish grinding of premium grades of flat high speed steel (and tool steel). Their quality is excellent and LittleMachineShop.com is proud to carry their products. Show more