Strips most non-round shielded cable including Kapton, and Kynar, TEFLON, Tefzel and high-temperature insulated cable Spring-loaded head provides even tension Cable diameters from .12 inch to .22inch (3.05mm to 5.59mm) Fixed blades are sized to insulation for accurate stripping Blades sold seperately TEFLON is a registered trademark of E.I. du Pont de Nemours and Company.