1 x Network Crimper 315 -- works for RJ11 (6P4C)/RJ12 (6P6C)/RJ22 (4P4C/4P2C)/RJ45 (8P8C) connectors. Crimper does not have rachet action. 1 x Cable Tester for cables with RJ45/RJ11/RJ12 Connector (battery/charger not included). The LED lights will flash in rotation if all the wires are properly connected, otherwise the corresponding light will not flash. The color of the LED light does not mean anything.
100 x RJ45 RJ-45 CAT6 Gold-plated Connectors/Plugs (This is just regular RJ45 connector, not pass-through, and without load bar)
Youtube is a good source to learn basics of making your own network cables to desired length