The Ripley Cablematic 31620 is a heat-treated steel replacement sheath cutting blade (model CB 118K) designed for the CST875 series Coring, Stripping & Chamfering Tool. It strips the outer sheath and cores the dielectric of 875 mil coaxial cable in a single precise pass, producing a clean, beveled cable end ready for connector installation. This blade is the consumable component most frequently replaced during high-volume coaxial cable preparation work performed by cable splicers and broadband installation technicians.

The CB 118K blade is compatible with the CST 875 (Part #32210) standard T-handle tool and the CST 875-R (Part #32250) ratchet-handle variant, as well as the updated QCST 875T and QCST 875T-R tools from Hubbell Broadband. Confirmed compatible cable types include CommScope P3, Times Fiber T10, and Alcatel/Benelux ACE/ACW 875 mil coaxial cable. The replaceable blade design allows technicians to swap only the cutting element without discarding the full coring bit assembly, reducing tooling cost in the field.

For complete coring tool setups, the CST 875 series accepts interchangeable strip length stops ranging from 0.5 in to 2 in (12.7–50.8 mm), each sold separately. The ratchet handle (Part #31275) and 3/8 in drill adapter (Part #31235) are also available as separate accessories for technicians configuring or rebuilding their CST875 assembly.

• Blade model CB 118K — OEM replacement for the CST875 and CST875-R coring tool series
• Heat-treated steel construction for durability and consistent cutting performance across production volumes
• Strips outer sheath and cores the dielectric in a single operation on 875 mil coaxial cable
• Produces a smooth, beveled edge on the cable end for reliable connector seating
• Replaceable independently — no need to replace the full coring bit assembly
• Compatible with CST 875, CST 875-R, QCST 875T, and QCST 875T-R tools