Really cheap router bits

the ones in the link are upcut and will tend to chipi out the top of the plywood, but the bottom side will look good. Up cuts also have good chip removal so if you are cutting plastics or aluminum they are necessary otherwise the plastic will melt and refuse.
the ones posted above are straight cut and work well on wood with minimal tearing, but would not work on aluminum or plastic.

and surprisingly the carbide bits on amazon are much cheaper in price than the aliexpress ones. the problem is the best price is 6mm diameter, not the more typical 6.35mm (1/4") so you might want to buy a collet adapter for them to fit. Never assume that you are getting the best price just because you order it off Chinese web site. Certain items are cheaper in bulk from usa resellers.

2 Likes