The break out kit is used to provide a safe exit for optical fibre cords to equipment, at any point in a 100mm, 220mm or 300mm duct system. It allows optical fibre cords to feed vertically down to a rack. The break-out unit clips straight into a cut out, 2 cuts wide x 75mm deep, made by the cut out tool (Part No: TC1279-231KIT). The second cut down is made to the top of the ducts highest longitudinal rib. This 220mm x 100mm duct, 90˚, down break out kit, has two large convoluted tubes exiting the unit. Each tube is Ø75mm ID/Ø88mm OD (Part No: TC1279-458). With a prepared square end, each tube screws into the mating outlet port. The 90˚, down break out has a snap-fit, removable cover (Part No: TC1279-455). Alternatively, the duct edge can be prepared using a saw (Part No: 100 x 060 ) with the Cut Out Jig (Part No: TC1279-483A); available separately.