ELECTRICIANS' TIPS - SMALL hole to BIG hole using a double hole saw
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- Опубліковано 8 лип 2021
- A common problem - how to enlarge an existing electrical knockout. In this example, we enlarge an existing hole from 25mm to 64mm
We use a Mandrex hole saw with a special hole magnifier adaptor which allows 25 and 64mm hole saws to be used simultaneously.
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Featured in this video
Mandrex 8 Piece Electrician Hole Saw Kit
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Mandrex Cooling Gel
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#efixx #electricians #tools - Наука та технологія
I don't know why, but this just made me realize how big anti-aircraft rounds are
Ok what XD
@@osmacar5331 I understood his English without a problem
@@walterbrunswick you missed the point
@@JimboJuice I seem to have also missed the connection between his English being fine and his comment on the connection between this video and anti-aircraft rounds.
@@JimboJuice I already got that, I was just wondering about what Walter's comment had to do with anything here.
Been an electrician for 15 years. Cooling gel has yet to be provided by the contractor. Instead, they order tons of hole saws, encourage blasting through at top speed and then expect you to just toss the dull bit in the trash.
Yep. Because cost/benefit doesn’t work out in the hole saws favour. Sad but true.
I use these kind of hole saws to cut holes in stainless steel. I literally NEVER use cooling gel or oil or anything. You just keep it in first gear, and apply even firm pressure. You’ll get 500+ plus holes out of them if you just run them in first gear.
@@missionmarkone7484 why not.use a Knockout set????
Only way to do it 🤷🏻♂️
I mean its pretty obvious why buying more hole saw blades is much cheaper then waiting a few minutes per hole
My supervisor came and told to hurry up three times before this video was over
Gotta love an incredibly clean hole.....
😃
👁👄👁👌
Yes. She has to be clean. I mean.... yeah I stay clean for the holes.....
LMFAO! I was scrolling to see if anyone else caught that comment at the end of the video. You were the first one that I stumbled across that said anything about it.
Just what we're all looking for,
"AN INCREDIBLY CLEAN HOLE"
Gotta love a clean hole.
"That's what she said"
@@GarySmith-ss1ee your drunk 🥴
Made me laugh more than it should have 🤣
Wish I could say the same about the psycho who gave me stds
"That looks like an incredibly clean hole" no wonder my plumbing buddies make fun of electricians
Hahahaaaa deadass
Please refer to them by their proper name... "Turd technician's"
Yours sincerely the superior trade electrician 👍
Well, I do like my holes clean..
Everybody loves an incredibly clean hole.
Am I the only one who laughed when he awkwardly said. "Now that looks like an incredibly clean hole"
Now try doing that the other way round!
🤣🤣🤣
Been selling Industrial Tools for 42 years. This is one VERY COOL Hole Saw System...! And he even knows what swarf is. 👍
Knockout punch makes a nice clean hole too👍
I ran into this problem at work yesterday and was stumped, a co worker showed me this technique, what a relief.
This man's treating that like it's 10 inches thick
Personally I use a hydraulic press equipped with a variety of cutters. When you have to open many holes on stainless steels, things are more difficult with these holesaws.
This guy is the BOB ROSS of metal cutting
An incredibly clean hole.
That's what she said
The benefits of using cutting fluid
Greenlee sells really good knockout punches.
That sure is a clean hole 😁
Smooth 👍🏻
And there's nothing better than Gordon's closing line. Just kidding, thanks guys
Love a clean hole!
I love incredibly clean holes too
Nice tool though. Never seen an attachment like that in the US. I’d be using a knockout. Very clean hole, no…swarf to speak of.
We also have the Milwaukee knockout - just showing alternate methods - ua-cam.com/video/0UUQx8GhWpM/v-deo.html
Mandrake? Like Harry fucking Potter, your a god damn wizard.
We used to own this Greenlee hole punch set that worked a lot faster than this. But it's good to know how to use a hole saw on metal in a pinch
We’ve got the Milwaukee one but don’t think it’s faster - 👉ua-cam.com/video/0UUQx8GhWpM/v-deo.html
@@efixx Ours was called the slugbuster Punch and Die set
This is why a milwaukee knock out pays for itself. The time I would lose doing this if say I had a distribution box would be crazy. Milwaukee knock out all the way. Love your tips though. ❤
greenlee
Greenlee hydraulic all day
@@richardroberts4355 I agree with greenlee also
@@fordharley37 I have a set I bought in 92. Only had to replace one cutter when a helper put the bell on backwards.😆
@@richardroberts4355 it's always the ones who didn't pay for the tool that mess things up.
Not a new idea but didnt know you need coolant for that. It's not rotating all that fast. You cut, you don't drill
Nothing quite like a nice clean hole...
Have to say I definitely appreciate you showing variations on products and process but some of these are definitely slower and more expensive. Which is how you end up with a better product most of the time
Except in this case. If you need a bigger hole the hydraulic or electric knock-out set would have it done in 1/10th the time. With zero mess.
This guy shows you the slowest and most painful way to do things. Nothing he does is current tech.
@@leftyeh6495 but its tech you can afford at home. I wont spend 1000 bucks on something i need once, yes those saws are in my 20$ toolkit (im exaggerating, but you get the point).
This will take 2 electrician journeymen and 1 apprentice lol
For metal that thin a metal hydraulic punch out would be less messy and cleaner cut.
You could just grab the knockout kit and have it done in a minute instead of 10. Zero mess and less bullshit.
Yup - like this ua-cam.com/video/7rrn1A9Hv1k/v-deo.html 👍
That’s what i told girl last night , that it looks like a incredibly clean hole😝
is nice, but in mostly cases knockout use is a better option.
expensive way of making a washer but hey if it works 🤷♀️
I always used Greenlee KO’s when ever possible, hole saws take too much work, too much mess and noise, 3/4” carbide hole saw, I prefer the 3/4”, gives room for slop, also easier to get the slug out. I used a good step bit, only on the low speed setting, seeing someone burn one up always made me cringe 😤
Maybe they don't know about punch and die sets over there?? Really though wtf?? Imagine he was drilling stainless?
@@fanplant , SS NEMA R3 cans are tough, we had SS KO's, and still I managed to break the 2" set, the 4" was a real bear, took out the seals on the hydraulic hand pump. ahh, the good old days ;-p
@@kentcroy1609 we were breaking drawstuds shooting the 3.5" punch across the room on stainless steel. Solution was a plasma cutter.
Ko requires you to drill anyway lol. The set up and tool change takes way more time and you have to drill for the arbor... So you aren't saving time nor mess.
KO are used because of space constraints. Not any other reason.
@@Hunteratloppshop try using a 4" holesaw.
Alternatively, a hydraulic punch kit.
Proper job, nicely ✅ done...
I too love a clean hole
Me when I'm bent forward looking in the mirror checking after wiping - "now that looks to me like an incredibly clean hole"
You used cooling gel to drill 1/16 tin?
It does make a difference
@@efixx as a cutting fluid yes but at low speed low pressure its main responsibility is ensuring a better finish not keeping the tool from getting touch warm
You gotta treat your tools better
@@xstonedsnailxbox so what would you use to keep it cool other than cutting fluid?
@@seenitalready you missed the point
And you get a washer out of it🤣🤣🤣🤷🏼
I used that exact same line last night...
I never knew I needed ASMR tool reviews
“Incredibly clean hole”
Well everyone sure likes a clean hole don't they
AND……AND now look at that beautiful washer you also now have…….. that’s called a “toofer”
Two for one
I always cut holes at a slight angle and move it left to right slowly while cutting this reduces the amount of metal in contact with the hole saw and speeds up the cutting process
It you want a clean hole, you can't beat a sheet metal hole punch, although absolutely precise centering (if that matters) in this sort of case is a bit more tricky.
Free washer at the end too!
You remind me of Bob Ross with your demeanor. All you need to say now is "happy little drills" and "happy little holes." Hahaa
And happy accidents - just not when the power is on 😂😂😂
“That’s an incredibly CLEAN hole” 😅
Luby lube really does make a big difference in the tool life. Great tip bro
That's one clean hole !
Things you can say in the bedroom and in the workshop. "Now that looks to me like, an incredibly clean hole". And "wipe away the swarf".
I learned this trick 20 years ago as a finish carpenter. It comes in handy sometimes.
Nice clean holes are my favorite
“An incredibly clean hole”
-People after they use a bidet for the first time
Nothing like a clean hole! 🕳
We all like a nice clean hole.
We’d use a knockout kit.
Gotta love a clean hole !!!!
I prefer the Milwaukee punch tools they work like a dream.
We love the knockout - ua-cam.com/video/0UUQx8GhWpM/v-deo.html
"What an incredibly clean hole" is what my dad used to say to me
Brutal
Can't get over the name Mandrex Mandrill 😂
Love how the manly mandrill has a pink hole cutter.
Great video the last sentence was just a little creepy. LMAO " that's a clean hole" 🤣🤣🤣
Well I always used a hole punch they sell ones that size super nice
👉ua-cam.com/video/0UUQx8GhWpM/v-deo.html
@@efixx mine was a manual one wasn’t a fancy electric one still better than having to drill holes though
This always sounds good in theory but my hole saws arbour threads are always short on the reload brand, I got a 1/2” piece of wood with every hole size that I use as a guide, she’s called the glory holer 😁
Funny how sparky knows this. But will never sweep up after them selves
Love incredibly cleans holes…. 🤣
“Mandrakes, or, Mandragora are a ......”
(Forgot the rest)
-Hermione Granger
I always like clean holes
a gr8 lunricant for holesaws is honey. sticks to the drill & the wax in the honey reduces friction. clean with orange spray cleaner
I love clean holes
Relaxation therapy
Who doesn't love a clean hole👍
This guy is the fuckin Bob Ross of tools. Very soothing 👌
Seems like an inefficient way to make 1” fender washers.
Wait what... my old job (wiring gas tankers) I drilled hundreds of brake light holes no cooling gel and just sent it hard and fast (sorry I didn't know much mechanical knowledge before starting said job and that was how I was trained)
Honestly, made it look like hard work on the bench! Now do that obove ceiling leaning over a pipe of some sort with trunking full of cables.
Makes a change from going full speed and breaking my wrist when it catches
Less gel, more braaap speed needed. We're all here to get er done and get to the pub in the arvo quicker. Not stress over cooling gel in 0.5mm steel
And more holesaw bits - the speed here is the manufacturers instructions
Try getting in centralised in the trunking as putting the gland on could be tricky
Nothing like a clean hole
What a clean hole
Honestly I hate hole saws.
Doing this in a gutter is a nightmare.
Knockout set is the way to go
Sounds like this is going down the drain 😂
Knock out set? Punch kit? Available in handheld electric set or hydraulic set or even the good old fashioned hand cranked version. Especially since you already have a hole big enough for the spindle. Plus it makes the holes a lot cleaner and precise. But if the set isn't available and cleaner and precise isn't a priority, well I say great job 👍.
Thanks - We also use the Milwaukee knockout which we’ve reviewed here 👉ua-cam.com/video/0UUQx8GhWpM/v-deo.html
Everyone loves a clean hole
Milwaukee hole punch go brr
We’ve got one -,ua-cam.com/video/0UUQx8GhWpM/v-deo.html
Very clean hole
And we all like an incredibly clean hole.
I've never heard cutting oil called "cooling gel" 😂😂
“An incredibly clean hole..”
I'll use a knockout tool most of the time but thats definitely in my Arsenal
**Watches video**
The boy in the Midwest: “ what in the hell is he put around that bit before he punched her?!”
A nice clean hole is never a bad thing !
I drill into steel pipe all the time but if i asked for cooling gel, the boss would laugh at me. Yet hes ok with buying new hole saws all the time🤷🏻♂️
There's got to be an easier way to make fender washers...
He said that looks like an incredibly clean hole🤣
Or you could just lay out the hole and start it on an angle where the smallest surface area hits your laid out line then tilt it square to finish the penitration. No extra tool necessary
Yup
Takes a little finesse tho, tried to show a buddy of mine and when he tried it he Fd it up. Broke my damn pilot.
For some reason I am reminded of Bob Ross here, you know that painting guy with an afro... smooth talker.
Yes we know who you mean 😂😂😂