DIY Supplies: ElectricalType: CombinationTurn the adjusting out A to get right exposed length of blade, which meet the cable thickness.Turn the adjusting screws B to get a distant of "V" shape cable holder (The diameter of cable was indicated on the slitter guide C) or punch D to get a correct distant, and then insert cable into the cable holder E. User can use less force on operation.Rotate the by clockwise direction 2-3 times.Push the shaft to the left end to get a longitudinal cuts. Pull the cable out or use the V-shape cutter to remove the slit insulation.For terminal block: Strip cables from 10-15mm diameter.colour:blackMaterial:plasticsize:16x45x2cmPackage Contents:1*Wire Cutter Only the above package content, other products 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.