What will cut out a hole in a plastic bin?

Question

I'm making a feral cat shelter out of two big plastic storage bins: you put one inside the other & fill the space between them with insulation of some kind. But you have to cut a "cat hole" thru both bins. I tried a utlity knife. Then I got this drill bit at Home Depot that's supposed to act like a saw to cut straight & curved lines. I thought that would work, but it doesn't seem to at all.

Answer 1

those drill bits will work on plastic, but the speed of their rpm needs to be lowered.

or you could use a 14 tooth per inch jig saw blade in an varible speed jig saw.

if you use a high tooth rate or a high speed, it almost always heats the plastic up to the point where it starts melting it after you cut it,

too much pressure and you crack the plastic,

Answer 2

There are fly cutter hole saws that work well. They have a central drill bit and a side arm that has a sharp blade mounted on it. When you turn it on and press the drill in the arm swings around in a circle and the flying cutter slices a circular hole. The radius of the circle depends on how far-out you adjust the arm to swing. Plastic is a cinch since they are designed to do holes in metal.

Answer 3

jig saw, drill a hole big enough ton insert the blade.

Answer 4

i would use a saber or jig saw with a medium toothed blade

Answer 5

Use a jigsaw.