Posted By Jim Walker James, I've seen a tool that looks like a big version of a plumbers pipe cutter used for this. Can't help further though

Posted By Catman Hi Midlake Some electrical companies have compeltely banned the use of stanley knives for this application. Accidents have occurred when the stanley blade breaks whilst under high strain cutting the insulation, the broken egde slips and is likely to cause a serious and deep cut. The alternatives were also knives but much better suited to the task, try RS components as that is where alternatives were sourced. Stanley knives are convenient but certainly not the suitable tool in this case. Please send me an email if you have any problems sourcing a suitable alternative and i'll get the name of what we used. Cheers TW

Posted By David Robb we used to use a junior hacksaw for SWA (steel wire armoured)cable, simply cut through to the earth screening around the circumference and then at 90 degrees and peel off the sleeve. no use for longer terminations though.