Large jaws, long measuring lines and a piercing needle between the jaws. Solid, springy copper clamps with pliers opening width up to 12.7 mm and serration. Large piercing needle for piercing wires with larger diameters between the jaws. 1.5 m long silicone-insulated measuring leads, can be used from -80 ° C to +70 ° C. For 30 V, 10 A. 1 x red, 1 x black