Thread Tap Extension PRETEC, TE, with IC

Version:
- long or extra-long version, the front end the extension is designed as a collet
- by tightening the knurled clamping nut, the collet is clamped with the tap
- the torque transmission occurs via the square drive
- the rear end The extension complies with DIN, so the extension can be held in clamping devices like a tap.

How to use:
In tap quick-change holders or tap ER collets with square. For threading in inaccessible areas, such as deep recesses, shoulders, interference edges on fixtures, extremely deep internal threads, or directly on casting walls.

Note:
138605: suitable for shrink-fit and hydraulic expansion chucks
IC = Internal Cooling