🇩🇪 Made in Germany
Available from ¼″×19 TPI to 1″×11 TPI.
Used for internal threads in industrial maintenance, repair workshops, tool rooms, and assembly work.
The double ended design combines starting and finishing work in one compact hand driven tool. UN designates a Unified inch thread used where inch based fasteners and maintenance parts define the connection. Before use, check alignment, holder fit, cutting oil, and the condition of the pre drilled hole so the thread profile can be produced without forcing the tool.
