Angle Grinders 101 | How to Use an Angle Grinder
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- Опубліковано 21 вер 2024
- A straight to the point explanation of grinders, wheels and safety.
My 4.5 inch angle grinder may be the most useful tool in my small workshop. It can be used to cut metal if you don't have a band saw or a chop saw or to grind welds. I usually keep a second angle grinder with a wire brush installed to remove slag from stick welding or flux core welding. In this video, I show my favorite disks and wheels for metal fabrication with an angle grinder. For cutting, I use abrasive cutoff wheels and diamond cutoff wheels. For grinding, I often use flap discs.
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DeWalt 7 Amp Paddle Trigger Angle Grinder: amzn.to/3mPxKlc
Diamond Cutoff Wheel: amzn.to/3CRkbHP
Standard Abrasive Cutoff Wheel: amzn.to/30GZjSn
Offset Cutoff Wheel: amzn.to/2SvPfHg
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Wire Stringer Wheel: amzn.to/33G25tf
Wire Cup Brush: amzn.to/3d2YJ6B
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Thanks for the safety tips. Of all the tools in the shop, I have injured myself more with an angle grinder than anything, and I try to be safe. A few things I've learned: 1) After grinding a piece of steel, it gets very hot -- don't forget it. 2) A grinding wheel will cut through your skin a lot faster than metal -- it will take time to heal. 3) Wire wheels usually throw off wires at high speed -- they penetrate easily through cloth, so think how much easier they will go into your eye. 4) Don't think it will make you look like a pro if you take the guard off.
Thanks for the waning. Convinced me not to buy this overrated tool.
@@ve2jgs Greg, the angle grinder is a very useful tool after welding and during other metalworking operations. Kind of like fire, you use it but you always respect it. Grinders are like any other power tool in the sense that they have no conscience, and can do damage to the operator just as quickly they can to the part being ground. I use grinders often, but I'm always trying to be aware.
@@ve2jgsIt's not an overrated tool it's a tool often used improperly by amateurs who haven't bothered to educate themselves.
Should wear gloves when use this tool ? Saw a comment saying Not to wear
Thanks for sharing your experience. I decided not to touch this tool
Great tip to pass on-zip tie your wheel wrench to the plug-end of a corded grinder. Not only will you never lose your key, you’ll never forget to unplug the power when changing out a disc. (Can’t remember where I picked this up, but thanks to original source! Works like a charm.) Tim, you do a fantastic job and your videos are my favs. I’ve learned so much from your channel. 🙏
A simple tip, a massive difference. Not only for the safety issues but when you have your mind focus on doing something there is no biggest disruption of your thought process than looking for the damn wrench, which is always out of place or missing.
It also works for the drill key.
Great tip, automatic safety and efficiency.
You don’t need the wrench… unless it’s seized up
@@albertjowd8482 what would you use instead?
@@jonfisher9214Nothing, you just use your hands (preferably with gloves) to pull the disc (counter clockwise) while holding the button with the thumb of the other hand. Then when you change the disc, tighten the nut with your hand as much as you can and finish the tightening by pulling the disc (clockwise) with your hand. I worked in trades for years and you will almost never see someone on construction site using the wrench.
I am 73 and just learning to work with tools. You are one of the best teachers I have met. Sir you know how to "keep it simple".
I agree. This was all killer, no filler.
I've been using grinders for 38 years and couldn't find a flaw in your video mate, great stuff 👌
I am 74 and purchased just yesterday, my first 115mm (4.5 inch) battery operated grinder however, I have yet to purchase any grinding or cutting discs while I research exactly what it is I need. Thank you for providing a large part of that information & knowledge ... I am that much nearer to selecting and purchasing my first disc or discs, with which to 'giving it a go!' Thank you again for sharing your knowledge and experience.
do you think they'll rig the election or physically remove trump?
I can certainly agree about wearing safety equipment for your face with these, or even Dremel type tools. Just a couple of weeks ago, I was wearing safety glasses and a face shield, and still got something in my right eye. I was moving around a large part I welded together, and didn’t realize that the massive sparking was traveling around the wheel as I was moving. It ended moving around right at my face. That’s a huge amount of sparks. One managed to get through, and in my eye. Fortunately, it wasn’t too hot when it got there likely bouncing around inside my gear before entering my eye.
But, if I didn’t have that protective gear, I could have had a massive problem. I’ve been doing this for a long time, and I’m normally pretty careful (don’t listen to these guys on UA-cam who tell you to take the guards off the grinders). But the more you do, the greater chance something will go wrong. Don’t be stupid, it’s not manly to go blind.
Don’t ever take that guard off I’m a welder but I did roofing work with my father and some idiot from the other company said this how a real man uses a grinder took the guard off cut some metal the disc broke and cracked hit the dude in his shoulder and by his neck
I'd say it's not manly to be stupid
@@tummytub1161 absolutely!.
Going blind is ghey
And wear good leather gloves to help protect your hands.
Nice video. I recently started using an angle grinder for cutting angle steel, and for removing old paint, primer & rust from a steel I beam bridge. We found that the Bauer Surface Conditioning Tool with the 40 Grit Stripping Drum was superb at removing a large swath right down to the bare metal, but we needed angle grinders with both the knotted & wire cup brushes to get into the tight curves & welded corners. Together both tools did a great job getting down to bare steel, so we could come back in paint with a metal primer & a top coat to restore the steel bridge to very good condition.
I wore a Tyvek coverall w/ hood, booties, safety goggles, 3M P95 respirator and gloves because these tools really throw out some fine grindings that you don't want to breathe or get in your hair, skin or clothes, for that matter. We also used a large tarp to catch the grindings rather than let them get into the environment. Take care of yourself, take care of your fellow workers and take care of the environment. And use the right tools to get the job done efficiently.
Great post Tim. I tend to have 3 grinders on the go at any one time. 1 with a cutting disk, 1 with a grinding disk and one with a wire cleaning wheel. I used to use my grinders without a guard but after seeing many horror stories when things go wrong, I always use the guard and eye protection.
Thanks! 3 seems to be the magic number for me as well.
*Grinder 1: Cutoff wheel*
*Grinder 2: Grinding wheel/flap disk*
*Grind 3: Poly rust/strip disk - great for stripping alum etc of paint without cutting it in half*
@@1nvisible1 but.
@@markslates8324bbɓ😊ĥ😂
Just purchased my first personal grinder and full face shield. The grinder at my work always made me super nervous to use, no guard and no handle. Great tips! Feeling so much better now
Huge OSHA violation. Trust yr instincts if smtg feels unsafe.
the first YT that shows angle grinders with the shrew or safety cover on the machines
Great video Tim.Also a good safety tip is: Keep your head and body out of the plane of rotation of the disc, because in the event of kickback or wheel failure, you're not in the most likely path of shrapnel. Also, gloves can be an entrapment hazard between the guard and the disc. Very impressed you said clamp the work and put both hands on the grinder - I see a lot of UA-camrs not doing this - very dangerous practice to hold the work with one hand and operate the grinder with the other.
ni
ni
Point taken
Agreed, except I would recommend wearing gloves definitely with wire wheels and brushes. If your glove gets caught in-between the disk and the guard, it's in the wrong place to begin with. Just make sure your gloves fit... well like a glove. No flappy bits and strong fabric made for the purpose. They will keep your hands from being stripped to the bone.
I hold the tile I’m cutting with my bare feet and hold the grinder with two hands
Thank you! Found your video by accident. But great to see you focus on Safety! The information you provide is great for new/future metal enthusiasts.
For 15yrs, I have offered welding and metal working to mostly novice students. And Safety is a constantly being taught. At the end of the day, most students appreciate the safety aspect of my class.
Again, thank you for your safety information.
As a newbi to angle grinders your video is unequalled! Great video, Thank you.
I just bought a ginder today with multiple different wheels... then drive home and see you posted this. Perfect timing!
I learned the hard way about wearing PPE with a grinder. Just got out of the hospital after getting a cloud of wood dust in my eye 2 days ago. My left eye is halfway closed, the left side of my face is swollen and painful.
It was my stupid mistake for not wearing eye protection. Do not let this happen to you!!!
EDIT: My left eye is infected with conjunctivitis from exposure to contaminants from the wood dust on my deck. Again, please learn from my mistake and don't take stupid and unnecessary risks like I did. Good PPE is definitely worth the investment. An ER and optometrist bill caused by carelessness and disregard to safety is NOT how you want to spend your time, money, and risk permanent damage to your health. Please hear me out and be safe!!
I got wood dust in my eye just fucking around with my best friend's ceiling mounted decoration the other day, looked straight into it and a stream of dust went straight down into my eyeball. Had to hold my eye under the shower for 15m, it was awful. I was so mad at myself for not using PPE.
Thank you very much , I ordered an angle grinder today and while I waiting it to be delivered, I thought it was wise to learn some tips since I have never used one before. Thank you once again for this video which was very helpful.
Best video on angle grinders I have seen. Good man Tim and a million thanks
Great vid - packed with useful information - many thanks. Short and sweet, yet surprisingly comprehensive - because no waffle.
That was excellent. Learned heaps. Very little experience with an angle grinder, but I do own one. Think I am alot more informed in its use and safety.
Great video. It's been awhile since I used a grinder but your video helped to refresh an old man's memory. Thanks for a great video
Tim, I gotta tell ya....I love your videos. I know all about grinders and wheels, but you do an awesome job of explaining things in such a simple way that I watch all your vids anyways. thanks man.
Thank you,
There is so much I am learning about metal fabrication tools and welding
Thanks for another excellent video! I'm returning to welding and metal work after many years away, your videos are super helpful, keep 'em coming.
You're one hell of a mechanic you work on everything and anything just like me I used to work
Superb detailed instruction, Thank you. When you're new to purchasing something, it's always a benefit when you have video's like yours that help what to look out for before buying.
Thank you very informative!! Im a girl. Dad never taught us about tools. I love remodeling, repurposing.
Thank you so much! This was extremely informative. Now I feel like I can go into the store and make an informed choice for doing larger wood carving projects!
Very mood video. All killer, no filler! Grinder wheels were always a mystery to me and this certainly clears up some of my questions for sure.
I rarely comment on UA-cam but could not pass this without saying what a fabulous and concise video this is. Thank you so much for this. I learned an awful lot. The only thing I would add is some safety glasses. I am sure this video will undoubtedly prevent many accidents
Excellent video thank you. Answered all my beginners questions.
Thank you so much for your videos! I recently learned to weld Stick and have been working with metal and grinders/cutoff wheels a lot at my new job. It’s all so new and unfamiliar to me and I mostly learn by observing and asking questions, but it’s great to watch your videos so I approach things with a bit of basic knowledge in my back pocket!
Very well explained. Great tips and safety precautions. You covered everything. Will check out more videos as well. Thanks a bunch.
Simple, informative and to the point videos ........thanks
This vid was exactly what I was needing for my cutting wheel/angle grinder, answer. (I have the same model Dewalt you have in the vid so it was perfect for me). Have referenced this channel for countless tips/procedures for all my welding. Thanks again for posting. 🇨🇦👍🏼
Thank you for your safety tips , according to my experience, I would like to share my experience.
Angle grinder is very useful at the same time can be dangerous. It is an unpredictable powerful machine , specially more power and speed causing it more unpredictable. For those who have an accident , use the used, one with lower RPM , use those with less watts , hold it tight, grip it right and stand comfortable expect that although you are doing all right, but something goes wrong.this machine kicks back and you have to control it tight .be alert at all the times , if you are tired do not work with this machine..
Great post, but you missed a type of wheel that I find super useful. The scrubby pad kind, called a strip disk. It's great for cleaning material before welding and painting. It takes off mill scale and rust really well but doesn't take off much metal like a flap disk can.
Great video! Thank you for the instruction and the safety pointers.
This video was great! Thank you for making it. I learned so much about angle grinders.
wonderful educational video, thank you for the knowledge
The video I was looking for! Thank you so much! Quick, informative and super high quality.
My own experience with angle grinders has led me to the conclusion that YOU MUST USE GLOVES, at least with wire disks. If you have never been “bitten” by a wire wheel turning 12,000 rpm, it is hard to believe what damage they can do in the blink of an eye.
I will never use gloves with any rotating machinery. Too much chance of it grabbing you.
@@allanmears4218 I guess you pick your poison, but, unlike a lathe, drill press, router table, table saw etc. with handheld tools you have to worry about them jumping out of position and presenting a hazard from an unexpected direction. I have never been “grabbed” by, say, my Milwaukee Magnum wrist-snapper corded drill, though it is 8 amps and wants to rip all the tendons in my hands to shreds with torque.
Afaik wire wheels are rated at lower rpm than 12000. Last one I bought is rated at 8000rpm
I got hurt and cut a mast chunk out of my finger with an angle grinder. I took the the guard off too. Was a bad idea.
On a bench grinder yea you wouldn't want to use gloves because they can suck you in but with battery powered hand tools you most definitely want to use gloves and always wear eye pro @allanmears4218
I have a project and realized I need to buy and operate a grinder. So I looked you up and I think I'm well prepared! Thank you so much for an enjoyable lesson on what to buy, how to handle it and especially the safety gear to use. I have ordered safety goggles and a flip-up face shield along with my grinder. I've subscribed to your channel. Thanks again.
Thanks
Answered my question at 3:14 flipping the nut over.
You are a great teacher. Thank you for sharing your knowledge.
great video-a lot of common sense and ideas for newer welders!
Thanks Tim...as a Boomer looking to start welding for a hobby, your videos offer a lot of great info in all areas.
another channel extremely perfectly presented with great information. in this case for someone who has not used an angle grinder before.
- Thanx a multimillion for sharing clear, relevant info on using my angle grinder.
Your comment was 3 months ago. What did you do? Did it work?
I have had a few grinder wheels explode and you never find all the pieces. Thank you for the great video and for highlighting unplug, guard etc.
This is one of the best of this type of video I've ever seen.
Excellent video Tim. I always snap my used discs in half so people (my grandfather) don't take them out of the garbage and try to use them!
Great idea. I'm the type to take stuff out of the trash and use it 😂
Tim I'm very happy that you explained the disc and which side of the Tom ring should be turned into the disc I was always confused with this and I only use my angle grinder as a home hobby on a rare occasion so I usually forget by the time I use it again.
heyy. thank you very much for the tips o disc and for the safety
somtimes we want to run forgeting the first rule. safety
very usefull video. congratulations !!!
I remember a situation at the construction site where several older workers gathered around to talk about something and one of them was setting up the angle grinder. The moment he turned it on, the disk exploded into million pieces. Luckily, everyone walked away without a scratch. Few minutes before that, a huge drillbit had snapped while being operated by another guy. Do these things happen on a regular basis? This was 3 years ago, and I was a fresh structural engineer. So after this and quite a few other accidents at that very site, I decided to pursue the rest of my career in the bureau. Thank you for making this video and make me feel a bit more comfortable with power tools.
Thank you for shating all the grinding, cutting, and safety info
Buying my first angle grinder today. Thank you.
Hello Tim.
I did learn from this video
plus laugh a lot remembering mishaps that I have had in my shop.
like paper towels catching fire because the sparks. and other things.
I love your video and enjoy the very much.
too bad you are on the other side of the world for me.
really need friends in this type of job to share experience.
you know.
I learn to weld by doing it T.my church. during the 90's and started watching welding videos about weldingike 3 or 4 years ago.
Greeting and Lot of blessing from Honduras
A heartfelt thank you. I had no idea what which grinder to choose, but most importantly, what are the different grinding wheels for.
Nice explanations on small tips I didn’t realize. If I were using a grinder all day long I’d definitely use a respirator, not a drywall dust mask.
I just bought a used angle grinder at a flea market for $12. I didn't know how to use one before watching this video. I do have and use other power tools though.
Wow, that's a great video. Just got a grinder to make mods for my smoker. I now have a plan of attack. Thanks
Hi Tim, thank you for the valuable information. I started using an angle grinder for embellishing some wood turned objects. How to safely use the angle grinder was explained very well in the literature that came with it. However, it was very difficult to try to understand the different discs And how to properly buy and use them as this information was not included. Great explanations and videos. Tina
Excellent video. 👍
Additionally, I like the idea of a second fire extinguisher in case the first one catches fire.
The second one is Halotron. I do some electronics work and this is a specialty extinguisher that won’t cause additional damage to electrical equipment.
Great fucking detail...love all the small details for us that are clueless when it comes to any type of tools..I learned a ton..please keep the videos coming!!! 👏👏👏
Super informative - big up yourself
Only one tool frightens me more then my 9 1/4 circular saw and that’s my angle grinder in cutting mode!
Thanks for your valuable information! I feel a lot more confident now.
Great tips on how to hold for a cut!
I have gotten a hot bit from a wire wheel, running on the wimpy cheap HF grinder, to somehow go around the face shield to hit my eyelid. So I'm gonna actually follow the guidelines I've seen that you still need to wear goggles under a face shield.
I will agree that the trigger switch grinder is much nicer than the slide switch...
Awesome video. Helped me a lot. On a side note you kinda look like my doppelganger
Thank you for all the tips.The info is appreciated thank you
thanks for this bro. from the Philippines
Wonderful skill and creativity !
Super glad I watched this it's been years since I've used a grinder and just started a new job where I have to relearn the skill and they removed the shield and provided no safety equipment I'm going get my own stuff 🤬
Thank you for the lesson beginning at 3:00
BRAVO TIM. Ta vidéo est simple et explicite
If new to grinders this video will answer a lot of your questions
I’ve used an 90 degree air grinder at work for 20 years 2” composite for aluminum and occasionally steel to relieve clearance issues.
Never had one blow apart but I’m careful, I use deerskin snug fitting gloves to protect my hands as being careless 1 sec at 20K rpm will cut through that glove and nick you pretty good.
I have prescription safety glasses with required side shields but if the work will support it I’ll wear a face shield to add another layer of protection. No shield on the grinder. At home I use the shields on my welding grinders as much as possible. I started with an older slower battery powered ryobi at 8K rpm and that one I use with a wire wheel. I’ve actually purchased a few with power cords as they are lighter. I’ve found the battery powered models wear you out with the weight over time.
my hubby did all that but he is gone so i have to do such work on my own. i have a few of his tools.
this will help me a lot
Female using bf's tools here too.
Sorry about your loss
Sorry to hear about your loss.
Girl here, bf showed me how to use one for the first time today. I'm gonna be real I'm scared of it! But I think I can do it, we spent like an hour walking me thru it. Fortunately I know bf has his shit together and does things the right way, I wouldn't trust most people not to cut corners and be sloppy with my safety (and setting a bad example is also being sloppy with others' safety). He says don't take the guard off as tempting as it is.
Very good intro to angle grinders.........thanks
Very comprehensive lesson. Thanks
Thanks ,very informative video
Great explanation!
Just picked up a corded DeWalt today.
Nice presentation again! I learnt too many things about protection from you and wish to humbly remind viewers one thing learnt from you before: please wear hand protection at least to grinder holding hand. It is not easy to control grinder with gloves, though in some instances gloves help protect wrist and arm from hot metal sparkles. During some angles of cutting the hot particles spreading may slowly burn inside of your wrist and lower arm. You feel heat a little later. But this heat may cause a retreat reflex that could hurt yourself with wheel. My bad experience speaks.
@Will Swift Thank you for your contribution. I did so and was happy with the results. Though I must wear a long sleeves cotton shirt to protect my forearm from sparkles.
Outstanding Video... Thank you, I learned a lot from your video, its greatly appreciated!!
I worked as a rigger repairing ship decks, grinding down the stubs left over from the tie-downs for securing large cable spools (10+ meters, 65 tons empty). Some safety rules we had to follow, breaking them would get you kicked off the ship:
Lack of just one glove.
Lack of a guard on the grinder.
Removal of the handle.
Fortunately, I had a great team captain, who gave a shit about his team.
Regards from Denmark
Very nice compendium! Thank you! 👍🏻
Can you make a video about assembling the "cutting" wheel...and everything has has to do with the cutting blade, thanks.
Very well explained sir. Thank you.
I like a lot that you highlighted safety here.
Too many people go with ignorance and bravado and "first things first: let´s put this(takes the guard off the grinder) and put it where it belongs (throws it in the bin)".
I´ve used a grinder outside pretty often and i´ve noticed that if you blow your nose after using the grinder, you got black snot. Even outside.
Mask every time. I don´t care if you´re outside. Mask.
Thanks for the video, great for newbies like me. For face protection I tend to use my motorcycle helmet, suppose it is not the ideal thing to use.
Hey, it's far better than the "safety squint"
Excellent video and great info. Thanks!
Thanks for another great video!
You are welcome! Thanks for the comment!
Lotta info, FAST! Love it!
something you missed about the cutting and grinding discs, a lot of them have an expiration date stamped on the inner ring, google says it's 3 years from date of manufacture. seems to be more like a best before date though, i've been working through a 50 pack of "expired" in 2018's and no notable stories to share.
i like how you only showed knotted/twisted wire wheels, i hate the wire brush ones. i find the knotted ones aren't as grabby if you catch an edge the wrong way and i've never had one of the knotted ones stick a bristle into my ball bag.
Thankyou. Highly professional
Nice and concise.
Thanks a lot!
Dude!!! Awesome video. Been a handyman for a little over a year and just now having to educate myself about grinders
Thank you for the clear and understandable video!
My first (cheap) 115mm grinder has packed up after a few years of abuse, I've just bought a new one and I'm planning to do things the right and safe way from now on.
I shudder when I realize just how lucky I've been not to get seriously injured or worse, the way I've been working.
First thing will be to buy some PPE and new discs!
This is a very good video. I made inventions. I will use a grinder to machine them. Thank you.