The Ripley Cablematic 31320 is the CB 115K replacement coring bit kit for the CST 500 Coring, Stripping, and Chamfering Tool — the standard replacement when the coring bit assembly of your CST 500 or CST 500-R is worn or damaged. The CST 500 cores the dielectric foam, bevels the aluminum sheath, and strips the polyethylene jacket of .500" coaxial trunk and distribution cable in a single operation, and this kit restores that capability without replacing the entire tool. Designed for use by linemen, cable splicers, and telecom technicians working on coaxial cable plant infrastructure.

Part 31320 fits both the standard CST 500 (part 31910, T-handle with built-in 3/8" drill adapter) and the CST 500-R (part 31950, ratchet handle with separate 3/8" drill adapter). The red color coding identifies this kit as part of Ripley's .500" cable series — consistent with the CST tool family's color-coded sizing system that spans 412, 500, 625, and larger cable designations. If only the sheath-cutting blade requires replacement, Ripley's CB 60 (part 14907) can be swapped independently without installing a full coring bit kit.

This coring bit kit is compatible with CommScope P1, P3, and Cable Guard cable; Times Fiber T4, T6, and T10 cable; and Alcatel/Cable Benelux ACE and ACW cable — covering the major trunk and distribution cable types encountered in broadband and CATV plant work. The heat-treated, spiral-fluted coring bit construction is designed to produce a clean, consistent core every time, which is critical for maintaining proper connector seating and minimizing rework in the field.

• CB 115K coring bit kit — purpose-built replacement assembly for the Ripley Cablematic CST 500 and CST 500-R tools
• Designed for .500" coaxial trunk and distribution cable; identified by red color coding in Ripley's CST series system
• Heat-treated, spiral-fluted coring bit construction for clean, repeatable dielectric foam removal
• All-metal construction for durability in field conditions
• Compatible with CommScope P1/P3/Cable Guard, Times Fiber T4/T6/T10, and Alcatel/Cable Benelux ACE/ACW cable types
• Sheath-cutting blade (CB 60 / part 14907) can be replaced independently if only that component is worn — this kit addresses the coring bit assembly