They're a little pricey at $40 or so but I'd like to give it a shot on some upcoming projects for the woodhauler. The specs for the blade say "up to 1/4" steel." I have two lengths of 3 x 3 x 5/16" thick angle iron and two lengths of 6 x 2 x 1/4" wall box channel. I'm wondering if cutting thicker steel might be possible if the cut was done in stages, ie: setting the blade depth at 1/8", then a 1/4", then 3/8"? Here's a guy cutting through 3/16" plate with one: It might be worth the $40 to give it a shot. Seems like a better option than putting an abrasive wheel in the circular saw. As you can see from the videos these Diablo blades don't generate a lot of heat (no sparks)-they chip away at the metal like a cutting head on a milling machine would, so it shouldn't be nearly as hard on the saw itself. Still, I have a $5 yard sale saw I'll try it with. Here's the project I'll be using it for: I need a better bed for my truck. I've beefed up the rear springs and the brakes (upgraded to Toyota T-100 discs/calipers in the front), but you can only carry so much in a 6.5' bed that doesn't have very high sides. So I decided to build a flatbed. The bed will be about 7' 6" which is kind of long, but it will be mounted up high so I shouldn't have any departure angle problems. I'm going to make it 63" wide which is basically as wide as the widest part of the cab so that I have as large a bed as possible. I'm going keep the spare right behind the cab old school style-that way it's up out of the muck and easy to get to. Plus I'll still be able to carry 4 x 8 sheets of plywood to the right of the spare mount (4' 2" to the edge of the bed). I'll also be cutting in stake pockets so that I can put 24" tall stake sides on the sides and rear. I should be able to carry a decent heaped load of wood that way. The bed itself with all of the steel, 3/4" oak decking, and the spare tire (265/75/16 Treadwright Guard Dog on a 16x7 Tundra steel wheel) should come in at just over 500lbs which from what I've seen is about 200lbs heavier than stock, but I have 200lb helper springs on my rearend that can handle quite a bit of weight. I'm hopefully going to be making a deal on some 5.71 gears I found on Craigslist later this week so those will help get the load moving. I'm going to make my own mounts out of UHMW polyethylene-that's what a lot of better body lift kits use so it should work well. Eventually I'll add a backrack because I need a place to mount a high lift jack, chainsaw, and some other stuff, but I just want to get the basic bed built for now. Hopefully will be starting on it soon.