10pcs Welding pin Pulse Welding needle Suitable for sunkko spot welding pen HB-71A 70B 71B

Specifications:

Material: copper oxide and aluminum

Length: 9mm

Diameter: 1.5mm

Fit for: Sunkko Spot welder 709A 709AD

Features:

1.to avoid the sticky electrode phenomenon.

2.pieces of non-yellow solder, appearance of welding joints.

3.to eliminate the phenomenon of welding sparks.

4.superior electrical conductivity and thermal conductivity.

5.good high temperature performance.

Package includes:

10 pcs welding pins