Alright lets see how good yall are

I need to cut some 1 1/2" angle iron 1/8th thick.

I have no matabo
No acetalyn torch
no bandsaw

I do have a sawzall.
Do you think i could get away with cutting this with a bi metal blade?
Or do I need a strictly metal blade.
Or is this a futile method but would probably work.

My dad seems to think I can cut it with a Bi Metal blade.
I think he is nuts...
I know I can cut it with a Metal only blade as I have cut 3/4" anchor bolts with them before BUT this was a very ineffective method.
Would it be wise to try this on my angle iron?

 

If it's a general purpose bi-metal blade you will probably knock the teeth off. There are quality bi-metal blades that will cut it no problem. Give it a shot. I would want something 18-24 TPI.

 

aight well then i will probably just snag a metal only blade from work...

I agree with you on the knocking the teeth off...
i mean ya it cuts through nails and stuff like that... but angle iron? im not so sure about

I had attachments for matabo blades to go on a standard 4" grinder
I had like 2 sets but I quit that job and left them (along with a full leather welding suit, my custom made 3lb sledge with 16" custom made Quad #6 Rebar handle, Custom built wedges Slow tempered, other small tools)

 

You have a 4" grinder?
Use that ....

If you don't have one, I'd highly recommend going to the store and buying one. You know you'll need it again sometime....

 

+1

I think you'll be fine with a bimetal blade. Make sure if you have a variable speed sawsall that you're not at the highest setting. You want to cut steel with a medium speed - NOT high speed. If you don't have the speed dial, press the trigger only about half way. I've cut angle with Milwaukee brand blades. I have yet to lose teeth on that brand of blade.

 

Just buy the correct blade. Metal blades have very fine teeth.

I assume you live at home and are using your dad's tools? If you're a homeowner, an angle grinder is important to have. I bought one at Harbor Freight for $20. Works great for everything I've needed it for. Don't forget eye protection when cutting something like angle iron (or anything for that matter). Get a hot shard in your eye and your jerk reaction = 1 less finger.

 

I am not a blade person, but Sears or Home Depot or something....Someone should know selling you stuff....
Too, you can make friends with a Meineke or someone else with torches and welders...Most of them will do anything you want except remove your cats...

 

1/8" steel is an easy cut with a sawzall and bi-metal blades. Me and my friends have done alot of work with just a sawzall before one of us bought a plasma cutter. Sawzall's cut through Samurai frames like butter and they are about 1/8" thick.

 

The bi-metal will work, but it will take much longer than a fine tooth metal blade, and the resulting cut will not be a precise.

The bi-metal blades are more for use in wood or other soft material were there is a chance of hitting some metal during the cutting process.

 

Fine tooth metal blades are bi-metal. Bi-metal refers to the construction of the blade as they are made with two different steels. A harder steel is used for the teeth while a more flexible steel is used for the blade.

 

I just went and got a 1/16th cutting disc (dewalt)
i managed to get the tool room lady at work to give me the attachments like I had at the last job
so I just put it on the 4" and went to town
Turned out good

I will post pics tomorrow

And Ive been in construction for almost 4 years and I've always been told that BiMetal Meant that it could wood and metal Ie. Tin/Nails/other thin metals

 

I use bi-metal blades to cut wood with metal (nails) in it.

I use a disc to cut metal.

Glad you got'er'done

 

x2

 

Again Bi-metal refers to the construction of the blade, look around and you will find Bi-metal metal blades and Bi-metal wood blades...

http://www.lenoxsaw.com/enUS/Product/BI-METAL_RECIP_BLADES.html

 

I will second that bi-metal is the material it is made from. For example, I use Bi-metal holesaws to cut holes in steel all the time. I have used them to cut through one inch plate with no problem, however it was very time consuming and required a lot of cutting fluid.

 

well their ya go learn something new every day

 

I have seen some crazy stuff cut with a good recip. saw and a good quality bi-metal blade. I sell this stuff for all sorts of cutting applications. I have had many customers cut steel plate with them, just remember to let the blade do the work. If I were near you i'd just give you some to use that i have demo stock of. Happy cutting!