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View Full Version : What can i use to cut metal?


Gokarts4Life-11
06-04-2011, 11:29 AM
Hey, could I use a 6.5 amp reciprocating saw to cut metal (1/4"?)

devino246
06-04-2011, 11:33 AM
Yep. Just get a good metal cutting blade. Dewalt or Linox are the best in my experience.

Gokarts4Life-11
06-04-2011, 11:40 AM
Thanks! There on sale at my local hardware store so i'll be there today :D

Gokarts4Life-11
06-04-2011, 01:34 PM
What better to use, a reciprocating saw or an angle grinder?

Rustydog2010
06-04-2011, 02:00 PM
I would say an angle grinder, the reciprocating saw blades wont last long and I doubt it will cut thicker stuff. If you use an angle grinder properly the disks can last a long time. Don't force it through the steel, just let it cut under its own weight. It takes a bit longer, but save you money in the long run. If you have some cash lying around, I highly suggest a plasma cutter, :D.

Jeremy.

Gokarts4Life-11
06-04-2011, 02:05 PM
i would but i only need to cut one thing then i'm done (for a while that is) how many amps would you suggest for an angle grinder?
Thanks
Matt

Rustydog2010
06-04-2011, 02:24 PM
Depends what size steel do you want to cut and how do you want to spend? Angle grinders are always an essential item in any workshop.

If your just starting out, a branded 4 or 4 1/2" grinder above 1000watts would be ideal.

Jeremy.

Gokarts4Life-11
06-04-2011, 02:26 PM
Its 1/4" steel, i want to try and stay under 100 dollars.

Thanks

Gokarts4Life-11
06-04-2011, 02:33 PM
Edit* Metal

Rustydog2010
06-04-2011, 02:41 PM
Where in the world are you? If you are in America have a look at Harbor freight, I saw some $30 4-1/2" grinders. They only have 500-600 watts thou. It will be fine for what you want to do.

Have a look here, 4-1/2", 560 watt angle grinder for $25. (http://www.harborfreight.com/heavy-duty-4-1-2-half-inch-angle-grinder-91223.html)

Jeremy.

Gokarts4Life-11
06-04-2011, 02:44 PM
Haha I wish, I live in Canada. I'm sure i can find something similar here.

Thank you vary much

Rustydog2010
06-04-2011, 02:52 PM
Haha I wish, I live in Canada. I'm sure i can find something similar here.

Thank you vary much

I dont know about Canada being from NZ. :roflol:

But, just wait or maybe PM Toystory_4wd (http://www.diygokarts.com/vb/member.php?u=3629). He's a senior member on here from Canada, i'm sure he'll be able to point you in the right direction.

Good luck!

Jeremy.

sexyvicta
06-04-2011, 03:40 PM
if you're only cutting one thing then maybe just bust out the old hack saw? will take a while but wont cost anything. I cut down my clothes line with a hack saw the other day:D

gokart14
06-04-2011, 03:49 PM
if you're only cutting one thing then maybe just bust out the old hack saw? will take a while but wont cost anything. I cut down my clothes line with a hack saw the other day:D

I have to agree i cut the basic part of my frame out with a hack saw. just takes a little elbow grease

Gokarts4Life-11
06-04-2011, 04:18 PM
I was thinking about it but the part i want to cut is on an angle and the saw is not versatile enough to fit in the desired spot.

sexyvicta
06-04-2011, 04:19 PM
^stink.


I have to agree i cut the basic part of my frame out with a hack saw. just takes a little elbow grease

also its easier to make a clean and straight cut with a hack saw than with an angle grinder

Gokarts4Life-11
06-04-2011, 04:21 PM
Ya, i make it as far as i can go with the hack saw then use the angle grinder for the rest of the way :P

r_chez_08
06-04-2011, 04:47 PM
^stink.




also its easier to make a clean and straight cut with a hack saw than with an angle grinder

So true, i cut out the majority of my mini bike frame with a hacksaw, so much more accurate i find.
Rob

Gokarts4Life-11
06-04-2011, 04:48 PM
oh what the heck, i guess i'll try it

TorqueRanger
06-04-2011, 05:43 PM
Tools i use to cut metal-
Dremel with diamond blade
4.5" grinder
Sawzall
Jigsaw
Cutting torch
Hacksaw

kendelrk
06-04-2011, 05:46 PM
as ive seen toy story mention countless times princess auto

redsox985
06-04-2011, 05:56 PM
In Canada I would say to check out Princess Auto like Kendel said. When buying an angle grinder, the actual power specs are rarely referenced. They're usually bought depending upon size, being 4", 4.5", etc. I think 4.5" is the most common and most versatile as it can use both 4.5" and 4" discs. For cutting sheets, get good quality cutting wheels. The best I've found for cutting thick plate is a bandsaw. The cuts are clean and accurate. The plasma cutter I used never left neat edges.

Gokarts4Life-11
06-04-2011, 06:39 PM
ya i'll run over to canadian tire and buy an angle grinder, they're on sale

Doc Sprocket
06-04-2011, 07:16 PM
Just get the Mastercraft brand 4 1/2" angle grinder from Canadian Tire. I have 3 of them, been beating on them relentlessly, no problem. If you time it right, you'll get it on sale for $20-$25. They do it VERY frequently.

Another Canadian Tire tip- If you purchase something at regular price, and that item goes on sale within two weeks of you buying it, bring your reciept to the store and they will give you back the difference between what you paid, and the sale price.

I use these grinders for 90% of my steel cutting. Sometimes a recip saw will get into a tighter spot (like when cutting brackets OFF your kart), but- they can go thru blades pretty quickly and you'll get a much straighter cut with the grinder.

Whereabouts in Canada are you? You watching the game right now? Canucks are 1-0 over Boston.

Doc Sprocket
06-04-2011, 07:17 PM
Perfect- you figured out the Canadian tire thing while I was typing...

EDIT- TIP- Use cutting wheels for cutting, and grinding wheels for grinding. A grinding wheel (usually about 1/4" thick, removes too much material, takes longer, and gets things a lot hotter while cutting than a thin-kerf cutting wheel (less than 1/8"). Conversely, grinding with a cutting wheel is unsafe- It flexes too much and is not designed for that kind of sideloading.

Gokarts4Life-11
06-04-2011, 07:51 PM
thanks a lot guys, another question, where can i get a torque converter that would cost me an arm and a leg to ship?

Doc Sprocket
06-04-2011, 07:55 PM
that would cost me an arm and a leg

I think you mean "wouldn't"... :D
Sorry- that I don't know.

Gokarts4Life-11
06-04-2011, 07:57 PM
lol ya my bad, thanks anyways

Bluethunder3320
06-04-2011, 08:49 PM
we had a 8" (i think) dewalt angle grinder at welding class and it was huge!!!

what i use:

angle grinder for small cuts or pieces i cant fit under the chop saw...
4.5" dewalt, paddle switch, rubber handle, "heavy duty" version, around 10 amps, $80 on amazon
4.5" harbor freight grinder, around 5 amps i think? $15.... got it replaced once.

chop saw works GREAT during frame fabrication... cant cut things once attached to frame...
14" hitachi chop saw... 10-15 amps? $100ish at home depot i believe it was (lowes?)

hack saw.... works great for cutting ANYTHING without a power cord, i can cut 12 gauge pipes easily with a good blade...

coping saw... for little sheet metal mostly...

havent tested skill saw (reciprocating) and black and decker jig saw on metal yet.....


so all in all, different tools are made because, well, they are for different jobs...

devino246
06-04-2011, 08:52 PM
In my experience, angle grinders that big are so cumbersome that they're nearly useless for anything but masonry work. I used a 6"(i think) grinder with a wire wheel to clean out my floorboards and it killed my arms.

gokart14
06-04-2011, 08:58 PM
i hate cutting metal with angle grinder. it always comes out messed up. i guess thats just me

Bluethunder3320
06-04-2011, 09:16 PM
and using a wire wheel on a grinder, be prepared to get acupuncture!!

happens to me so much.. i get them through my jeans and 1/4" into my legs.

redsox985
06-04-2011, 10:18 PM
we had a 8" (i think) dewalt angle grinder at welding class and it was huge!!!

what i use:

angle grinder for small cuts or pieces i cant fit under the chop saw...
4.5" dewalt, paddle switch, rubber handle, "heavy duty" version, around 10 amps, $80 on amazon
4.5" harbor freight grinder, around 5 amps i think? $15.... got it replaced once.

chop saw works GREAT during frame fabrication... cant cut things once attached to frame...
14" hitachi chop saw... 10-15 amps? $100ish at home depot i believe it was (lowes?)

hack saw.... works great for cutting ANYTHING without a power cord, i can cut 12 gauge pipes easily with a good blade...

coping saw... for little sheet metal mostly...

havent tested skill saw (reciprocating) and black and decker jig saw on metal yet.....


so all in all, different tools are made because, well, they are for different jobs...

I am not a big fan of chop saws. They are just not accurate enough as they remove a lot of material and need to be cleaned up after as they melt the material and leave it behind.

and using a wire wheel on a grinder, be prepared to get acupuncture!!

happens to me so much.. i get them through my jeans and 1/4" into my legs.

What kind of wheels are you using that it flings them that deep into you?! Also, are you using the flat or cup style. I've found the cup style don't fling nearly as many and when they do, the wires don't go as far/fast.

Bluethunder3320
06-04-2011, 10:44 PM
What kind of wheels are you using that it flings them that deep into you?! Also, are you using the flat or cup style. I've found the cup style don't fling nearly as many and when they do, the wires don't go as far/fast.

i used a dewalt cup style... it costed like 12 bucks.

r_chez_08
06-05-2011, 01:59 AM
I use my dads 9" angle grinder when i am cutting and want to use an angle grinder. It makes short work of most things :D

Doc Sprocket
06-05-2011, 04:28 AM
i hate cutting metal with angle grinder. it always comes out messed up. i guess thats just me

It's just you. Practise makes perfect. Take it slow, and let the wheel do the work. You can make very good cuts with an angle grinder. In fact, I have access to a 14" Milwaukee chop saw, and I don't use it anymore because I have found I make more accurate cuts my marking and cutting by hand with my trusty little angle grinder. This includes angles other than 90*, too. Use the thinnest cutting wheels you can find.

Gokarts4Life-11
06-05-2011, 04:58 AM
Thanks a lot everyone. By the way Toystory-4wd I live in Ontario, ya great game also

Cam
06-05-2011, 04:59 AM
if you're only cutting one thing then maybe just bust out the old hack saw? will take a while but wont cost anything. I cut down my clothes line with a hack saw the other day

What part?

Must of been bloody tedious haha

Id be hooking it up to the wagon after the first few strokes : P

flamed181
06-08-2011, 08:29 PM
flexavit makes a great cutting wheel called a razer 41/2" and a 6" for right angle grinder