This is a used knife or clamp up limit switch for use with Challenge Machinery Model 20 and Diamond series.
Do not hesitate to call us and speak with Greg to make sure you are getting everything you need and remember, Greg is also happy to walk you through installing any part you purchase from Obsolete Cutter Parts.
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Parker directional valves have been failing on certain Challenge machines. Learn which models were affected and purchase replace replacement valves to keep your employees safe.