Science Kester Solder – 44 Rosin Core Solder,60/40,.040 Dia,1lb. Spool omniadminDecember 1, 2024018 views Price: $93.91(as of Dec 01, 2024 23:24:32 UTC – Details) Kester Wire Solder, Sn60/Pb40 Alloy, .040″ Dia., #44 Rosin Flux, #66 Core Size, 1-lb. Roll