Ripley Cablematic 33668 CB 143K Replacement Coring Bit Kit for QRT 540 Coring & Stripping Tools

The Ripley Cablematic 33668 is the replacement coring blade kit (model CB 143K) for the QRT 540 Coring & Stripping Tool, designed for use with 0.540-inch diameter coaxial cable. This is the consumable cutting component responsible for coring the foam dielectric during connector termination prep, allowing field technicians to restore their tool to factory-sharp performance. It is the correct replacement for both the standard T-handle QRT 540 (part #34641) and the ratchet T-handle QRT-540-R (part #33508), and Ripley also lists it as the coring bit kit for the JCST 540QR.

When the blade dulls from repeated use, cable prep quality degrades, making timely replacement critical for clean, consistent terminations. The QRT series uses a unique coring blade kit matched to each cable diameter - the CB 143K is specific to the 540 size and is not interchangeable with blades for other QRT models such as the CB 164K (QRT 320), CB 130K (QRT 500), or CB 127K (QRT 860). Technicians working with multiple QRT tools should verify the correct blade kit before ordering.