REPLACEMENT 7421 TIP FOR 7420 DESOLDERING TOOL Sterling Replacement Tip, Features: Made from conductive carbon fiber, For Use with: Sterling Static-Free Desoldering Tools 21-4530
20-3910 - Solder Flux
A flux for all metals, as effective as acid or chloride types but non-corrosive Solders even hard-to-solder metals such as aluminum, zinc-bases alloys, steel, etc. Ideal for soldering bus and ground wires to aluminum and steel chassis, to hermeti...
21-4719 - Crystal 400 Solder Wire - 63/37
Crystal™ 400 offers halide-free and 502 is the RMA version with 0.2% of halide Both offer a no-clean formulation giving crystal clear flux residues and minimal fume
I have always had the best of service and response from MCM. Highly recommended!