The slotting tool kit is a simple mechanical means of preparing a shortened length of 300mm, 220mm or 100 mm duct for connection to another standard part. e.g. elbow, cross connector, etc. The slotting tool cuts a slot in the duct end to suit a standard connector (Part No’s. TC1279-25, TC1279-27 & TC1279-320KIT); available separately. The kit is also provided with a plastic tool box, for transport.