The threaded inserts make the removal of threaded caps, possible, when these possess one threaded hole
No. 1.81/1: For slide hammer No. 1.35/1, 1.35/2, counter support No. 1.36/1
No. 1.81/2: For slide hammer No. 1.35/2, 1.36/2, counter support No. 1.36/3