A system for securing one or more cables, comprising: a split sleeve (10, 210) extending longitudinally from a first terminal end (12a, 212a) to a second terminal end (12b, 212b) and transversely from a first side (14a, 214a) to a second side (14b, 214b), the split sleeve being biased to a configuration in which the first side at least partially overlies the second side in the absence of externally applied force; and a tool (100, 100', 300, 400) for installing cables in the split sleeve (10, 210), the tool comprising: a center portion (110, 310, 410) having first (110a, 110a', 320a, 410a) and second (110b, 110b', 320b, 410b) arcuate lateral extensions; a first arcuate guide portion (120a, 120a', 310a, 420a) extending from and positioned radially outward of the first lateral extension, the first guide portion and first lateral extension forming a first guide slot (160a, 360a, 460a) therebetween; and a second arcuate guide portion (120b, 120b', 310b, 420b) extending from and positioned radially outward of the second lateral extension, the second guide portion and second lateral extension forming a second guide slot (160b, 360b, 460b) therebetween, such that, when the split sleeve (10, 210) is assembled to the tool (100, 100', 300, 400), the first guide slot (160a, 360a, 460a) is configured to slide along the first side (14a, 214a) of the split sleeve (10, 210) and the second guide slot (160b, 360b, 460b) is configured to slide along the second side (14b, 214b) of the split sleeve (10, 210). a split sleeve (10, 210) extending longitudinally from a first terminal end (12a, 212a) to a second terminal end (12b, 212b) and transversely from a first side (14a, 214a) to a second side (14b, 214b), the split sleeve being biased to a configuration in which the first side at least partially overlies the second side in the absence of externally applied force; and a tool (100, 100', 300, 400) for installing cables in the split sleeve (10, 210), the tool comprising: a center portion (110, 310, 410) having first (110a, 110a', 320a, 410a) and second (110b, 110b', 320b, 410b) arcuate lateral extensions; a first arcuate guide portion (120a, 120a', 310a, 420a) extending from and positioned radially outward of the first lateral extension, the first guide portion and first lateral extension forming a first guide slot (160a, 360a, 460a) therebetween; and a second arcuate guide portion (120b, 120b', 310b, 420b) extending from and positioned radially outward of the second lateral extension, the second guide portion and second lateral extension forming a second guide slot (160b, 360b, 460b) therebetween, a center portion (110, 310, 410) having first (110a, 110a', 320a, 410a) and second (110b, 110b', 320b, 410b) arcuate lateral extensions; a first arcuate guide portion (120a, 120a', 310a, 420a) extending from and positioned radially outward of the first lateral extension, the first guide portion and first lateral extension forming a first guide slot (160a, 360a, 460a) therebetween; and a second arcuate guide portion (120b, 120b', 310b, 420b) extending from and positioned radially outward of the second lateral extension, the second guide portion and second lateral extension forming a second guide slot (160b, 360b, 460b) therebetween, such that, when the split sleeve (10, 210) is assembled to the tool (100, 100', 300, 400), the first guide slot (160a, 360a, 460a) is configured to slide along the first side (14a, 214a) of the split sleeve (10, 210) and the second guide slot (160b, 360b, 460b) is configured to slide along the second side (14b, 214b) of the split sleeve (10, 210).