1. Made of high quality movement, durable to use. 2. Exquisite workmanship and stable performance, it is a great tool for you. 3. Wear-resistant aluminium alloy body ensure long service life. 4. Reinforced alloy cylinder provides large storage capacity and strong strength. 5. Suitable for casting sand cleaning and welding before the opening groove, weld slag after welding, flat solder scar, correction of the opening work of stone, concrete and brick wall.