The S-20 series is a parallel gap electrode design for use in the Miyachi Unitek round electrode holders, and functions the same as the Miyachi Unitek Unitip C series electrodes. This electrode is functionally the same as our S-23 series, but more expensive. We advise picking an S-23 design with equivalent tip size if you need this electrode. The S-23 offers better clearance angle and works the same as this S-20 electrode.
Understanding AIT part numbers is very simple. Various dimensions on the drawing are represented by letters, which correspond to values in the part number. The beginning of the part number establishes the electrode series and material, followed by various dimensions. You can request a quote by filling in dimensions below in the custom part number and indicating the quantity you wish to have quoted in the comments section.