BOC Acetylene nozzles are constructed using high performance copper and brass for longer lifespan and higher quality cutting. Lead Time : 18 days Brass and copper material provides maximum heat dissipation and cutting performance. Precision-machined and hand-finished to give a positive seat. Orifices are swaged to minimise gas turbulence and slag accumulation, whilst the nozzle design provides excellent gas-mixing for fast pre-heating. Smoother nozzle surface reflects heat and reduces splatter accumulation. Every nozzle is inspected and flame-tested at the point of manufacture. 100% brand new high quality product Easy to use, portable Suitable for heavy duty cutting works Material: Copper NIce finishing to give better appearance Made of high quality copper, longer shelf life. Suits 175mm Tungstens Pack contains 1 x Short Back Cap 1 x Medium Back Cap 1 x Long Back Cap