Atrump cnc cat-40 solid retention knobs

What is for sale: Atrump cnc cat-40 solid retention knobs

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CAT-40 5/8-11 Solid Retention Knob(s). Items sold individually, purchase as many as you require.
Compatible with most Atrump CAT-40 Machines
It's time to inspect your retention knobs if you can't remember the last time they were replaced. Every (1) - (2) years, depending on use, knobs should be removed from the holder and inspected. Any signs of wear or damage indicate they should be replaced. Any retention knob showing indications of cracking must be discarded for safety purposes.
Please Note: Retention Knobs are not interchangeable. Please verify the knob dimensions from your machine manual or existing knob before purchasing.
* Manufactured of 8620 Material
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