Cutting Modular cable:1.Place the single-bladed side of the tool's cutter facing you and cut the modular cable to the desired length. Make sure to cut the ends of the cord straight across, not diagonally.2.Stripping modular cable (Flat cable) 2a. Insert 6P Cable into the two-bladed side of the tool's stripper until it Presses the stop guide.2b. Insert the 8P Cable into the two-bladed side of the tool's stripper and let it extend a little past the lower cut blade. 3. Squeeze handles until it stops cable must be perpendicular and then pull from the tool.4. Remove the outer jacket, insert the stripped cable into the plug and be sure the left wire at one and matches the right wire at the other end. 5. Place modular plug with cable into the tool's holder. Be sure the stripped wire is between the tab and good contact. Squeeze handles until it stops. 6. Remove the crimped plug from the tool. Portable style with perfect shape. With Ratchet It 't damage the shelled-wire and works with high efficiency. which is hard and durable. While using press-pliers,just insert the cystal top into its position and press it. Suitable for: Dedicated for 8P/8P8C/RJ45 1.Place the single-bladed side of the tool's cutter facing you and cut the modular cable to the desired length. Make sure to cut the ends of the cord straight across, not diagonally. 2. Squeeze handles until it stops cable must be perpendicular and then pull from the tool. 3.Remove the outer jacket, insert the stripped cable into the plug and be sure the left wire at one and matches the right wire at the other end.4.Remove the outer jacket, insert the stripped cable into the plug and be sure the left wire at one and matches the right wire at the other end.5.Dedicated for 8P/8P8C/RJ45 colour:Blue + black Material:Steel + plastic Package Contents: 1 x 8P8C/RJ45 Network Cable Crimper Tool 1 x Instruction manual Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.