This Cable Seal Collet Assembly from GMP Tools is designed specifically for cables with an outer diameter ranging from 5.0 to 6.4mm, making it a crucial accessory for ensuring optimal performance when using GMP's Whisper and related micro cable blowing machines. As a replacement or accessory collet, it enhances the functionality of these machines by providing a secure and efficient sealing mechanism, tailored to fit your cable placing needs. Included in the Whisper configuration documentation, this collet assembly is an essential component for professionals seeking reliability and precision in their cable installation processes.