Multifunction wrench for CO2, oxygen, and argon cylinder valves, offering universally compatibility across multiple tanks types Perfect for emergencies repairs, workshop maintenance, or outdoor projects with its 21cm lightweight design ( 200g) that fit in tool belts and storage kits Ideal for HVAC technicians, welding professional, and DIYer enthusiasts requiring reliabled valves in industrial or home workshop environment Crafted from 6mm thick 45 # steel, this cylinder valves tool ensures exceptionally durability and deformation resistance during high pressure operations Engineered with ergonomic nonslip grips, this professional wrench delivers secure handling during critical systems operations, Manufacturer: KACCDE