The CST-750 from is a great addition to any tool kit with its ability to be used on CommScope P1, P3 Cable Guard Cable; Times Fiber T4, T6, T10 Cable; Alcatel Cable Benelux - ACE Cable. Ripley's CST-750 features manual or drill operation with a standard "T" handle and a built in 3/8" drill adapter. It also features a heat treated, sheath cutting blade that produces a smooth beveled edge and can be replaced without the expense of replacing the entire coring bit.