Smith® Welding Tip - SW Series (Acetylene), size SW201, for use with SW1, SW2 and WH200 torch handles. Smith's "Soft Flame" welding and brazing tips provide concentrated heat for better "puddle" control - the turbulent-free flame eliminates puddle chasing for higher quality welding. The heavy wall copper gives greater resistance to reflected heat, permits cooler operation, and dissipates more heat than thin wall copper. Smith's Slip-In tip design makes tip change quick and easy; takes just 6 seconds, hand tightened, no wrench necessary.