For Knives? They are all junk.
25mmx45mm travel?(1"x2") 2,000 rpm and no variable speed? No, none of these are good for steel. They are MINI mills and aren't good for much. Get a decent benchtop mill, but they cost more than you can afford Dave. Hundreds to thousands of dollars and then you get to buy all the collets, hold down sets and end mills, plus fly cutters, or simply put, all the accessories. They don't come with the milling machines Dave.
These are all toy maker stuff and like they say for wood and soft metals. Read the reviews. You aren't going to get a good mill for $150. Remember I said to work stainless you have to drill slow? You won't even be able to drill a hole in your 440C without melting the drill bit.
You already have a cross travel vise, just use a drill and drill out your slot first, then come back with an end mill and mill the slot out being very careful to not put much side pressure on your drill press spindle.
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