Bestool Sn60/Pb40 Rosin Core Solder Wire
Sn60/Pb40 leaded alloy · 1.0 mm heavy-joint wire · 100 g spool · 2.25% rosin core · 183-190 °C
⭐ Heavier joints call for a thicker wire, and this 1.0 mm Bestool Sn60/Pb40 spool is sized for them. On a locksmith bench it fills battery terminals, antenna coil wires, connector pins and wire splices quickly, without feeding wire mid-joint. The rosin core carries 2.25% flux and the alloy melts at 183-190 °C, giving full, shiny joints at a moderate iron setting.
⚙️ Key features
1.0 mm diameter
Puts enough solder on a terminal or connector pin in one feed.
2.25% rosin core
Core flux cleans terminals and wire ends as the solder flows in.
Sn60/Pb40 alloy
Leaded alloy with fast wetting and a bright, easy-to-check finish.
100 g spool
Compact spool for a bench drawer or a mobile kit.
💎 Benefits
Faster heavy joints
Less feeding and less dwell time on terminals and wire splices.
Strong wire joints
Enough solder to fully wet stranded wire and coil leads.
Moderate iron setting
Melts at 183-190 °C, so large joints flow without extreme heat.
Visible quality
Bright leaded joints make a cold joint on a terminal easy to spot.
👥 Who it's for
Automotive locksmiths
Battery terminals, antenna coil leads and contact tabs on remotes and modules.
Vehicle electrics technicians
Wire splices, connector pins and lead repairs on harnesses.
Board repair benches
Through-hole parts, ground pads and connectors on older leaded boards.










