Otto Frei Starter Soldering Kit Quatro His personal collection is extensive

His personal collection is extensive yet purposeful — he can explain in precise detail why one tool is made correctly for a task while a remarkably similar-looking tool falls short

compatible with standard flex shaft handpieces and rotary tools used in jewelry making and stone setting

serial numbers 18063 and lower — 3rd-stage filter

with each punch corresponding to a matching form on the flat block

Otto Frei Starter Soldering Kit Quatro His personal collection is extensiveThe Otto Frei Starter Soldering Kit brings together all the essential tools and materials needed to begin hard soldering in jewelry making. Hard soldering known as brazing in other industries is performed with a torch at temperatures starting at approximately 1500F, using silver or gold solders. It is distinct from low temperature soft soldering done with soldering irons and tin or lead solders. This starter kit contains nearly the same items found in