A modular plug system including a plug housing including a top surface, bottom surface and two opposing side surfaces, a front end and an opening opposite the front end, and a cavity extending from the front end to the opening in the back end with a plurality of openings extending through the front surface to the cavity, a plurality of guide units in the cavity positioned such that each of a plurality of wires engages a respective guide unit, a cutting surface extending from a lower portion of the front end such that the cutting surface is below the lowest row of openings, where the cutting surface is sized to accommodate two pillars on a crimping device with the two pillars being positioned on opposing sides of the cutting surface when the tool engages the plug.