The netherite tools can not be crafted, I searched in the recipes and it doesn't appear anywhere, also tried with a netherite ingot and it doesn't work, I don't know if you removed it on 20w12a, but I haven't find any information about it
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Environment
It's windows 10, Java edition, 20w12a
Oh yeah! You need a smithing table to do that now! It also keeps your enchantments which is pretty neat!!