RUNPOTEC Multi-Function Mandrel for XB 300, 500 & 500TThe multi function mandrel has been specially developed for the X BOARD XB 300, XB 500 and XB 500T cable rolling systems. Loose cable bundles can also be rolled by attaching them to the stainless steel centre mandrel of the XB 300 and then folding out the 4 side brackets. The telescopic centre mandrel measures 72 mm in diameter. It is therefore also ideal for rolling a thinner cable bundle with a small inner diameter or individual wires. The normal