This set of tools dedicated to the integrated circuit assembly and disassembly precision electronic components welding grinding cleaning repair etc. - There knife brush hook fork and sharp to meet the pressure welding cutting scraping hooks brush etc - Contours of the hand grip ergonomic design long-term operation will not produce the feeling of fatigue - Surface using chromium Shading treatment can rust - Various multi-functional tools are helpful while soldering. - You will find set of tools useful to the technician or electronics hobbyist that will help a lot at work and welding machine. - If you have done much soldering you will understand how these tools would be handy.