A tool (10, 20) for removing insulation in mid-span of a cable carrying a signal-transmitting conduit comprising: a lower body section and an upper body section movable toward and away from the lower body section; a curved mandrel disposed on the lower body section, the curved mandrel having a central peak portion and adjacent portions (44a, 44b) curving downward away from the central peak portion, to present a mid-span portion of the cable insulation on a side away from the mandrel peak portion, said curved mandrel including a cable channel (30, 34) disposed along a curved surface of the curved mandrel, the cable slidable along the cable channel (30, 34) when the cable is disposed in the cable channel (30, 34); a blade disposed on the upper body section, the blade movable towards and away from the curved mandrel; a cable guide (32, 36) disposed on the upper body section wherein the cable guide (32, 36) secures the cable in the cable channel (30, 34) when the upper body section is in a position toward the lower body section; and wherein the cable is securable in said cable guide (32, 36) and the curved mandrel in a curved position, allowing the blade to shave the cable insulation allowing access to the signal-transmitting conduit; characterized by an adjustment barrel (60, 70) having a length and a central axis extending the length of the barrel (60, 70) and including a plurality of height adjustment surfaces (62a - h, 74) each adjustment surface (62a - h, 74) disposed at a different distance from the barrel central axis wherein each height adjustment surface (62a - h, 74) positions the blade a different distance from the curved mandrel. a lower body section and an upper body section movable toward and away from the lower body section; a curved mandrel disposed on the lower body section, the curved mandrel having a central peak portion and adjacent portions (44a, 44b) curving downward away from the central peak portion, to present a mid-span portion of the cable insulation on a side away from the mandrel peak portion, said curved mandrel including a cable channel (30, 34) disposed along a curved surface of the curved mandrel, the cable slidable along the cable channel (30, 34) when the cable is disposed in the cable channel (30, 34); a blade disposed on the upper body section, the blade movable towards and away from the curved mandrel; a cable guide (32, 36) disposed on the upper body section wherein the cable guide (32, 36) secures the cable in the cable channel (30, 34) when the upper body section is in a position toward the lower body section; and wherein the cable is securable in said cable guide (32, 36) and the curved mandrel in a curved position, allowing the blade to shave the cable insulation allowing access to the signal-transmitting conduit; characterized by an adjustment barrel (60, 70) having a length and a central axis extending the length of the barrel (60, 70) and including a plurality of height adjustment surfaces (62a - h, 74) each adjustment surface (62a - h, 74) disposed at a different distance from the barrel central axis wherein each height adjustment surface (62a - h, 74) positions the blade a different distance from the curved mandrel.