a LEONARD TOOLS" INTRODUCTION The RES-1222 has been designed to shave thick jacketed cabs, such as Corning's armored and non-armored RocketRihbon® cable, and is perfect for making access windows on cables 0.47" to 0.87" diameter. HOW TO USE ON ROCKETRIBBON® CABLE 1. Using a Philips head screwdriver, loosen the screw of the cable holder, and adjust it to fit the size of the cable you are working on a. For 144f RocketRIbbon® cable, set the screw of the cable holder fo the lowest position. b.