The Snap-on 3-pc Wire Insertion Tool Kit, No. WINS240R, gives techs the flexiblity needed to maneuver around obstacles without damaging delicate wires, the company says. The 4.5 mm diameter shaft can hold a tight radius, and the handle is interchangeable with Snap-on WINS100 series straight tube shafts. The set is ideal for HVAC wiring, as well as wiring through motorcycle frames, automotive windows, doors, dashboards and firewalls. The WINS240R comes with a thermoformed storage tray and a lifetime warranty.