Abstract: Cutting tools are provided for scoring a hose over a fitting. The cutting tool includes a handle with a central pass-through for the hose, and a scoring mechanism adjustably coupled to the handle. The scoring mechanism includes a base member with a central pass-through for the hose, and which is adjustably coupled to the handle. The scoring mechanism further includes an arm-blade subassembly coupled to the base member. The subassembly includes a blade, and an arm with a blade-receiving recess, and a guide surface to contact and travel along a hose. The blade is coupled to the arm within the blade-receiving recess to extend a selected penetration depth from the arm. The arm is radially adjustable with adjustment of the base member relative to the handle to physically contact the guide surface to the hose and insert the blade into the hose the selected penetration depth.