RS PRO Cable Marker Application Tool for Helagrip Cable Markers Size C This cable marker application tool from RS PRO is designed for use with size C Helagrip cable markers. You can use it to quickly and easily attach identification markers onto electrical leads. All you have to do is slide the marker onto the application tool and push it into the applicator groove. When you remove the wire, the marker is attached and the wire is ready for labelling. This component has a PTFE (polytetrafluoroethylene) coating, which reduces friction to offer smooth application in one sliding motion. As part of the trusted RS PRO series, the tool has been tested by engineers for quality. It's ideal for use in both commercial and private settings to mark and identify electrical cables. Features and Benefits - Inner diameter of 4.6 mm - For use with cables from 4 mm² to 16 mm² - Overall length of 87.5 mm - Shaft diameter of 5.8 mm - Length of chamfer of 35 mm - Depth of hole of 20 mm