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Retipping 6 claws on a very large 7 stone diamond cluster in 18ct white gold using the Lampert PUK 3 Professional Plus welder on Standard 7ms 35% to 40% power. I started off with not enough power for these very heavy claws but upped the power setting to 40%. The claws are round (called pegs in the UK) so I use D shape wire with the flat part sitting nicely on the surface of the diamond. There is a photo of the finished job at the end of the video (I retipped the 6 centre claws too).