The very cheap china ones alao come in variety of prices.
Super elcheapo one wont be much use beyond screws..
About 90 100 bucks is generic 12V tool despite whatever fake V they say. About 25Nm is similar to bosch gsb120.

54Nm one for more torque is GSB180.

But if buying cordless leh . Many choice available. Mostly 12V or 18V good enough already.
12V more compact but not super powerful. Light and small.
18V bigger toys and more robust. Better runtime.
36V if you are in heavy construction.
China tool V, cannot trust. Fake V.
Ahh since both of these are similar questions can refer above.
If you're expanding the tool range then brand consideration matters..
Specifically that is a spring washer to be placed in btwn the flat washer and the nut.