Quick Connector Set, Hose to Torch, Steel Brass, Fuel Oxygen, B Size 9 16 in 18 ORS NASCO more ergonomic designs Models 10 more ergonomic designs Models 10 [Nom] 4 1 2 in Grit 24 Hardness Grade N Hazmat NO Jan San Catalog NO Prop 65 YES Quantity 10 EA BX Quarterly Flier NO Special Order NO Speed [Max] 13300 RPM Stock Status In Stock Style Fast Cut Thickness [Nom] 1 4 in Tool Shape Type 27 Type Nutted Used With Right Angle Grinder Welding Catalog NO and brazing applications Ensures pressure tight connections made in seconds Built in automatic reset check valves prevent reverse flow of gas by cutting off the gas under back pressure Oxygen and fuel gas models are not interchangeable in order to prevent wrong connections Color coded for fast and easy setup for welding