This previously-owned Corning PC-410 stirrer, part no. 440935, stirs. It has a 4x5 -inch ceramic top, variable speed control, and stir range of 60 -1100 RPM, per its technical specifications.
CONTACTOR FOR CLARKE EZ-8 DRUM SANDER, FA-8 ABRADER PART # 41807A Clarke refers to it as a "contactor", but most of us just call it a relay. This component enables the safety function which prevents the machine from starting when it's plugged in. Every time it's switched, a small arc jumps between the contacts,
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