DIY Supplies: Electrical Type: Combination Turn the adjusting screw A to the right to expose the blade length according to the cable thickness. Turn the adjusting screws B to set the distance of the "V" shape cable holder (the diameter of the cable is indicated on the slitter guide C) or adjust punch D as needed, then insert the cable into the cable holder E. This allows for easier operation with less force. Rotate the tool in a clockwise direction 2-3 times. Move the shaft to the left end to make a longitudinal cut. Pull the cable out or use the V-shape cutter to remove the slit insulation. For terminal block: Strip cables with a diameter of 10-15mm. Color: Black Material: Plastic Size: 16x4.5x2cm Package Contents: 1 x Wire Cutter Tool Only the above package content is included; other items are not included. Note: Lighting and different display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3cm.