Tire engraving machine: Rubber tire repair groove/tool, advantages: low power consumption, high power, good thermal effect, adjustable temperature range, voltage overload protection suitable for rubber products. Durable, Waterproof and Lightweight: Made of PVC material, it is not easily deformed, the shell is wear-resistant, and the body is insulated. Stainless steel handle, foldable up and down for easy carrying. Digital display screen: is more clearly visible and clearly displays the working voltage to avoid damage to the blade when the power is turned on too much. The temperature adjustment knob is more convenient, and the number of knobs can reach tens of thousands of times, making it safer and more secure! Three-speed adjustable: Speed up work efficiency, three-speed adjustable, light and small patterns can be heated in 1-2 times, and the work efficiency is fast. Upgraded LD display screen, with buttons to adjust temperature intuitively and with small error. Suitable for grooving, repairing, mounting/dismounting, balancing, and routine maintenance of tires for passenger cars, trucks, off-road vehicles, motorcycles, ATVs, go-karts, and certain industrial vehicles.