Uniweld MTF-17 Cap'n Hook 17 Flame Tip Proudly Made in the USA and 100% Flame Tested Capable of brazing up to 3" of copper Provides 100% wraparound of the copper tubing for even heat distribution Tip elbow is made of tough, durable stainless steel to protect against bending; mixer and nut are brass Fits either the 71 or WH550 welding handle