Defu 368A is a very cheap machine, but does cut most keys well with clamp addons for tibbe etc.
DOES NOT DO “all keys lost”
Ok for doing double sided flat keys buy a universal key clamp and cut it up as in picture 1. (universal clamp won’t do these keys)
drill 2.5 mm holes for clamp screws and use 3mm tap to run threads picture 2.
cut some shims from the supplied steel shims picture 3.
Pictures 4 and 5 perfect working key
brilliant machine for the money.
FYI, Aliexpress or ebay “universal key clamp” should get you started.
First test here all good work perfectly.
For Defu 368A vertical key machine, you can go for: