The littlemachineshop has HSS cutters that fit the MP 600 and work great. Like them much better than the factory carbide cutters.Bob
By chance do you have a link?
https://littlemachineshop.com/products/product_view.php?ProductID=1724There you go, mate.
Maybe these will help,https://forum.multitool.org/index.php/topic,71928.msg1730280.html#msg1730280Might not be as cheap, but they appear to be more durable. At the end of the thread, there's a picture from another forumer with them installed in a CD.