What's the best way to cut 1/4-1/2" thick rubber mats?

[off-roader]

What's the best way to cut 1/4-1/2" thick rubber mats? I have one I need to make an 18-20" cut on to split it in two pieces.
I also need to drill a couple of 3/8" holes in it. I'm thinking a tiny hole saw is the way to go if they make one that small. Any suggestions?

[Saiyan66]

I would try a jigsaw for the straighter cuts and a hole saw for the smaller round ones. I don't think they make hole saw bits below about 1/2" though. I could be wrong.

[Scoutn79]

You can use a circular saw with a good sharp blade and go slow so the blade doesn't heat up the rubber and get sticky. I thin the courser the blade the better...
Darrell

[Saiyan66]

Be careful with the circular saw, that is a recipe for some gnarly kickback.

[lindy]

I'd try a sawzall. Maybe use a metal cutting blade.

[HillbillyfromAL]

If they are just rubber a heavy duty hot wire cutter might work good. The sawzall might be a good choice to but I'd suggest a wood bit because it'll cut more before it heats up too much. If its not too tough even a utility knife would work. Sheet metal shears would probably work as well. As for the holes instead of drilling you could use a punch like a peace to metal tubing and a hammer. That would be the cleanest way to do the holes.

[keezer37]

Utility knife and a pack of new blades and gloves for protection.

If you use any type of power saw, I'd sandwich the rubber between some wood. I tried a jigsaw when cutting my mudflaps from NAPA truck flaps (1/4"), the saw blade just makes the rubber bounce (vibrate) up and down. I believe the same would be true for a sawzall. A circular saw, at a minimum, you would gum up the blade and I would even be concerned with safety here. Hence my comment about sandwiching it between wood to keep it stable.

A utility knife worked good and was easier than I thought.

[eric1115]

SHARP utility blade and a metal straight edge is the best way I've found.

[off-roader]

SHARP utility blade and a metal straight edge is the best way I've found.

A coworker of mine who is a former truck driver & has had to do this before suggested...
1) Use a fresh AKA sharp utility knife (because they're cheap, tough, and disposable once they dull)
2) Bend the cutting area over an edge so as the blade cuts through the rubber, the edges pull apart rather than fold back in creating more drag on the blade.

Will try it in the next few days.

[ExpoMike]

I have had good luck using a carpet cutter.