Interesting break on that drill. In my 46 years, most of which I've actively tried to destroy everything I touch, I've never broke a drill in that fashion. I would like to see more on that subject.
@frijoli9579
Жыл бұрын
I have 40 years and never broke a drill like that.
@TomDetka
Жыл бұрын
18 years and lots of sketchy no name drills never seen one break like that.
@M3nd0zaBrack3n
Жыл бұрын
4 years of "proper" home machine shop usage.. seen one drill fail almost like that. 10mm going into alumin(i)um, going by hand though, and I lost the entire tip of the drill to a really long break similar to this one. Drill index was bought at Aldi though, so expectations were not high.
@JBLewis
Жыл бұрын
@@M3nd0zaBrack3n Always fascinated by the range of things people report buying at Aldi
@v8Mercury
Жыл бұрын
I've used cheap drills almost exclusively for 40 years. Never seen one fail like that.
@yellowcrescent
Жыл бұрын
Weird, never seen a drill fail like that before, ever. Would be cool to see your inspection results under the SEM.
@imbored742
Жыл бұрын
I've had drills fail like this, almost certainly a manufacturer defect. The drill cracks during heat treating, then once it's under enough force, it splits the web along the pre-existing crack.
@patchvonbraun
5 ай бұрын
I've been a "maker" since the 1970s. I do machining on and off. I've never seen a longitudinal breakage of a drill bit. That's just fascinating. I wonder about maybe a batch of drills that were hardened but not suitably tempered afterwards.
@Ideasite
Жыл бұрын
Your bore gauges are worth more than that lathe. Of all of the fantastic machinists I watch on KZitem, you most deserve a bigger, better lathe. I was extremely lucky enough to acquire a DeValliere H140 Tool Room lathe, made in France (the birth place of the lathe). It came with a Bison 8" set-tru chuck. The machine tipped over shortly after purchase. The only damage was to the handles on the carriage. The original owners put it into storage from which a friend of mine bought it for pennies. He bought it intending to take the metal to the recycling center. It has no wear at all and performs well within the original specs hand written in the manual. Knowing that your level of expertise crushed mine, I'm ashamed that it's me and not you that has stumbled into this machine. I love every moment I work on it and think of you often, hoping you have the opportunity to experience something as fantastic as this machine. I've tricked it out with a VFD, DRO & a bunch of custom tooling, including a tool post grinder based on a Cherline mill head. This machine has never failed to amaze me with its results. You need your lathe day! Love the steering wheel!
@TheTsunamijuan
Жыл бұрын
Would love to hear more about the analysis of the drill failure. Material Science is just fascinating imo.
@PerfectionHunter
Жыл бұрын
$100 on: Drill Hog imported them from Chajna and rebranded them as their own.
@toolbox-gua
Жыл бұрын
Thank you for your time and sharing your craft. Where I live, it is very easy to mix units, Imperial, Metric, Spanish, and maybe Martians. Loved it.
@jbrownson
Жыл бұрын
I’d like to see more about the drill failure analysis. Thanks for the video
@LabRatJason
Жыл бұрын
Yes, 100% I need to see the analysis of that drill failure!
@veciolupo
Жыл бұрын
Dear James, congratulations with 100k Subscribers! Thans for sharing the knowledge - it is a genuine treasure for many of your watchers. I love your videos!
@realpdm
Жыл бұрын
I'd love to be on that customer support call with the drill bit maker. "yes, I put it into an electron microscope and I found..."
@rustyshackleford928
Жыл бұрын
I love this channel. Not only does my man have a kick ass, super clean shop... but he breaks out an electron microscope too! Id love to see more on that analysis. Thanks James!
@TheDigitalHombre
Жыл бұрын
Next Episode: Install a car horn on the milling machine ;-) Good job James!
@JDSmalley-ct2uh
Жыл бұрын
Thanks for the Idea and Design. I'll be making one for my Grizzly G0695
@AmateurRedneckWorkshop
Жыл бұрын
Great job there James. I got one from Tangent Jim and it is a very nice improvement.
@merlinmagnus873
Жыл бұрын
Did the same thing to my Bridgeport a few years ago. Used a stainless marine wheel complements of a local flea market. So much more functional than the original handle.
@VegaMaker
Жыл бұрын
Congratulations with 100k subscribers! Waiting for silver button arrival😁🥳
@richardf3327
Жыл бұрын
My theory: the Chinese are used to manufacturing for the U.S. and European markets so they often use both systems. Sometimes a bolt will have the thread made by one company and the head by another - if the final customer doesn't care if one of the dimensions is metric or imperial (standard) they will use whatever tooling is closest at the time. And it works (mostly) but probably catches quite a few of us out in the process. :)
@bobbuilder9368
Жыл бұрын
That bolt you pulled from the shaft is pretty standard in the racing industry, even in old British cars as well. For example I had a morris minor, some of the threads are imperial, some are metric and some are whitworth, some are metric with whitworth hex heads, some are imperial with whitworth heads, some are imperial with metric heads or vice versa, honestly racing and vintage car fasteners get very confusing
@chrisburbank6484
Жыл бұрын
not sure about morris minors and racing cars in the same sentance....
@bobbuilder9368
Жыл бұрын
@@chrisburbank6484 check out vscc races at goodwood or even better check out the ‘bluebell’ Morris minor, has been racing since the 90’s
@aguycalledlucas
Жыл бұрын
Nice add on to the mill
@ChazzC
Жыл бұрын
Thanks for sharing,James. I finally have all the bits needed to replace the three ball-end handles on my Mini Mill with a Ø250mm hand wheel for an article for HSM. I’m cheating a little, but you’ll have to wait for a) the article to be written and b) George to get it in the cue. Yes, please for a short video of your SEM analysis! While I could wheedle access to an SEM, it’s in a food lab so they probably wouldn’t like me to bring broken machine tooling in. I think it would be both informative and entertaining for your followers. Thanks, Charlie
@markfletcher6511
Жыл бұрын
i would love to see a video on the failure analysis of the drill bit. I have learned that any time you explain a new process I find ways to apply that newfound knowledge in many other areas.
@terrylembke8100
Жыл бұрын
On my lathes tail stocks I use a roundwheel and put handles on the circumference of the wheel . Very handy and I think easier to use . I am going to put on my mill soon . Try it you may like it James. Terry
@mduvigneaud
Жыл бұрын
Great job, looks like it'll be very convenient to use! Also, I would like to see more of the electron microscope inspection! I've had a different brand twist drill do that before. My work wasn't clamped down quite securely enough, shifted slightly and the drill bound up and kerploded. Sure glad I was wearing safety glasses because a fragment shot straight at my left eye and bounced off dead-center.
@Clough42
Жыл бұрын
Eek! It doesn't take many personal experiences like that to form good PPE habits in the shop.
@transmitterguy478
Жыл бұрын
You need a "That was easy" horn button in the middle of the wheel 😛
@0ADVISOR0
Жыл бұрын
YEEES I was waiting for you to say, I'm going to 3D Print it, and you did! WOOHO
@klw141
Жыл бұрын
I know everyone has issues with Harbor Freight, but they're number/letter/fractional Cobalt 135 split point drill set for $115 is awesome. I have been using them for a couple of years and they have performed great
@f.hababorbitz
Жыл бұрын
I was looking at those drills online last night, now $125. The one star reviews complained of dulling quickly. One review was complaining of the failure to drill out a deck screw, and I know those to be real hard metal, that require carbide. So the question is are those users drilling too hard of steel. I do have their cheaper HSS 115 piece set, and they are junk.
@klw141
Жыл бұрын
@@f.hababorbitz I run a small machine shop working mostly in low carbon steel and aluminum. I have two sets and I am REALLY pleased with the performance. Since they are Cobalt split points, they are vastly UNDER priced. You will like them!
@raindeergames6104
Жыл бұрын
Now this is my type of handle upgrade.
@TheMoody876
Жыл бұрын
Man now I have another project to do to my chevalier mill in addition to repairing the old TCC x axis power feed potentiometer
@Reducer
Жыл бұрын
I haven't tried this myself yet, but a recent version of PrusaSlicer apparently added support for splitting models along a line and adding keyways to line the parts up again, so each half could have been printed with the best side up. That would introduce new places for error margins though, but might be good enough for prototyping like you did. And I 100% agree with what you said at some point -- the places where you don't need full precision are great practice to do it for when you actually need it.
@alanjackson4397
Жыл бұрын
Congratulations on the one K subs
@noahkatz9616
Жыл бұрын
What a great idea! I'll be doing the same to my mill, but to avoid all of that machining on a new hub, I'm just going to weld a steel round onto the old hub, so I'll just need to add the 3 mounting holes.
@BIGWIGGLE223
Жыл бұрын
Are you kidding?? Hell yes we wanna see more on that broken drill!! You shouldn't have even had to ask! Lol! We're ALL a bunch of hardcore nerds that are just here to absorb all the info you can dish out. So, bring on the electron microscope inspection of that drill bit. I'm sure there's a LOT to be gleaned from it!
@Rowow
Жыл бұрын
holy shit nice job on those 3d printed threads!
@peirossmallhomemachineshop5364
Жыл бұрын
Nice project as always. And there are plenty holes in the wheel to mount a knob if a specific project needs this.
@gcewing
Жыл бұрын
Are we looking at the birth of a new sport -- milling machine racing?
@pebrede
Жыл бұрын
Nice iteration of this mod. If I might make a suggestion, the new hub would provide better support if a spigot was provided to centre the wheel on the hub. This also reduces some of the bending load on the bolts and puts a greater percentage of the rotational torque directly into the bolts instead of as a bending load on the bolts. Again a nice mod. Take care.
@JasperJanssen
Жыл бұрын
The central bolt has to go through, and its head is big enough that I don’t see how there could be a meaningful spigot.
@pebrede
Жыл бұрын
@@JasperJanssen Hi, the spigot does not have to remove the mounting bolt counter bore, as in most motor vehicle applications the steering wheel centering/locating spigot wall thickness is often less than .100” , all it does is provide a positive location for the wheel and reduce the possible misalignment during assembly and as a side benefit reduce the bending load on the fasteners. From the brief shots available in the video it appears that there is a sufficient area of the adapter visible through the wheel hub for a spigot without modifying or removing the counterbore. The fastener torque with the surface area of the wheel and adapter faces provides enough clamping friction to handle the rotational torque applied to the wheel. Thanks for your comment.
@onurjp
Жыл бұрын
Who says you can't drive a milling machine? Hell yeah!
@Walkera22e
Жыл бұрын
100K Subs, great work James and congratulations :) Excellent video as usual..
@martinchabot_FR
Жыл бұрын
Drop the coaxial indicator and get a 3D taster, not cheap but so handy and fast, especially on a ISO/BT or R8 dedicated holder.
@nikolausluhrs
Жыл бұрын
I feel like breaking taps would have an interest in your analysis of breaking drills
@Clough42
Жыл бұрын
I'll bet he would. :)
@gregfeneis609
Жыл бұрын
That was a wheel nice video, James
@RevengeCustomPaintCo
Жыл бұрын
By all means, get a co-ax indicator. It’s a game changer.
@robert5
Жыл бұрын
Think I am gonna do this. Was thinking 3 lever but like this better. Just need to find a large enough one for the right price... ahh, ebay link in description.
@kcdakrt
Жыл бұрын
My go to drills are made by norseman. Love em and have yet to break one.
@inkedupfishing7064
Жыл бұрын
I have used and still have the drill hog drill bits. The neodymium Snap-on me left and right but then I have another side that are perfectly fine I truthfully think it's in there hardening and tempering process is where some of the failure comes in
@tadamb1
Жыл бұрын
If I had heard elsewhere that someone examined their broken drill bit on a scanning electron microscope, I would immediately assume it was James.
@alexanderappelgren5710
Жыл бұрын
Ive bought some drillhogs, the only ones that are "good" are the smaller drills. Where the chuck part of the shaft and drill shaft are the same diameter, otherwise they are unreliable junk as ive had as much as 1/16 runout. Concentricity issues like that are unacceptable and causes them to break every single time after a few dozen holes, and they wont hold their edge because of it... on top of drilling way oversized. Their bigger bits are unusable, full stop. Smaller drills are good enough for light duty work, and if it says its hardened it actually feels and performs like it is only case hardened, doesnt keep an edge after sharpening be it by hand or on a dedicated bit sharpener.
@edvig2015
Жыл бұрын
Ok good - now get another one of those wheels and replace the Knee crank handle - much easier to make precise adjustments of the Z axis
@DavidHerscher
Жыл бұрын
Oh, right, OF COURSE Jame just happens to have access to an electron microscope… I mean seriously, now you’re just flexing bro. 😂
@bulletproofpepper2
Жыл бұрын
Thanks for sharing.
@stevespra1
Жыл бұрын
Nice work, James. I think I'll do that for our mill.
@subuser9627
Жыл бұрын
Nice, maybe a little knob like the truckdrivers have... Then you have best of both : wheel and handle.
@Chromevulcan
Жыл бұрын
So much for "The last handle you'll ever have to buy!" I've heard decent reviews on those drills, but nothing is going to convince me to switch from the Cleveland and Cleline drills.
@Michel-Uphoff
Жыл бұрын
In my 50 years working with machines I've seen blunt, worn out, crooked, badly sharpened, cheap, expensive, blunt, sharp, well every drill you can think of. But a drill that's broken like this... never. So it is very interesting to find out what exactly is going on. Have you already done a post mortem hardness test, and if you feel like it you could also do a comparative break test with simple means. The core diameter also could hold a clue. Curious about your findings with the SEM
@orange-micro-fiber9740
Жыл бұрын
That drill failure might be interesting to Ben at applied science.
@stephencase5160
Жыл бұрын
I would like to see the drill bit analysis.
@ivandavilaperez4659
5 ай бұрын
For avoid break on drills is better to operate back and forward to avoid that the metal burrs gets stock the bit drill.
@piccilos
Жыл бұрын
Good excuse to look into powder coating.
@kurtbilinski1723
11 ай бұрын
"How does this happen" is due to legacy parts in the past and who copied what and when. On my newish Honda RSX engine is a fitting that drove me crazy trying to replace. It wasn't metric, it wasn't Imperial, but turned out to be BSP (British Standard Pipe) thread! Yup, apparently Honda, likely way back in history, copied parts off British cars, and some of it just kept getting passed down through the years.
@BIGWIGGLE223
Жыл бұрын
Oh! And that weird bolt could be something to do with who made it and for warranty claims. I know that back in WWII Ford and Willy's were both manufacturing the Jeep and Ford stamped the Ford logo on the heads of all their fasteners. Or it could've been the last screw to be made on a Friday.
@DRrandomman22
Жыл бұрын
Yg1 drills are pretty good and pretty affordable. We use them on the cnc equipment but they work well on the manual side. Ive only broke them doing stupid things in a cordless drill. I don't recommend yg1's endmills but there drills are pretty good
@badjuju6563
Жыл бұрын
Cobalt in soft gummy materials hasn't been good to me either, I don't think the bits are as sharp from the manufacturer. On stainless they are amazing though.
@rickpalechuk4411
Жыл бұрын
For the win! Cheers
@joshuaellestad
Жыл бұрын
Please do a video on the drill bit
@robertpearson8798
Жыл бұрын
Nice, but I think I’d prefer a traditional ships wheel or perhaps you could add a suicide knob.
@mumblbeebee6546
Жыл бұрын
Like most armchair machinists I can’t even remember where I put my electron microscope right now, so a video would be cool!
@robertoswalt319
Жыл бұрын
I purchased a large drill set from Drill Hog because of their warranty. It is frustrating because you have to send the broken one to them with proof of purchase and wait for them to return a new one via snail mail. Concerning the bolt, it sounds like something designed by a committee with a mean streak.
@dgcorey65
Жыл бұрын
Love the look Any chance you would tap the holes in the outer portion of the wheel to add a knob?
@STRB909
Жыл бұрын
Should put a trucker knob on there.
@Blozoozozoz
Жыл бұрын
The mix of imperial and metric is due to it being a Bridgeport clone and everything on a Bridgeport is imperial. The makers tend to keep some amount of parts interchangeable. The Bridgeport version of that screw is slotted.
@mrsaizo0000
Жыл бұрын
Wow, never seen a drill break that way in a lathe. Ever tried Ruko or Gühring brand?
@dhollm
Жыл бұрын
Electron microscope == yes!
@DigiLab360
Жыл бұрын
It just occurred to me…who the heck has an electron microscope in his workshop 😳!
@criggie
Жыл бұрын
My lathe can't take a drill larger than 10mm, so I bought some reduced-shank bits up to 14mm.... and it "works" though spindle motor really struggles. Yours should cope fine with larger bits, or find some with morse tapers to directly fit your tailstock ? Also; Do we want to see an excessively-deep dive nerded out video about drill fractures, with an electron microscope? HECK YES !!
@RambozoClown
Жыл бұрын
I'm guessing they just changed the threads so that Bridgeport accessories would fit. I see the same thing with Honda small engines, everything is metric except the face mounting patterns are imperial threads.
@jimforsyth2.
Жыл бұрын
This metric hardware and ase hard wear are mixing I have noticed on automotive applications. Mostly on battery terminals 12 mm drives and standard threads.
@joesmith2465
Жыл бұрын
I use drill hog bits also them seam to be working well for me, and if ya registered them they have warranty. I have the step bits to those don't seam to sharp.
@kenhouse3484
Жыл бұрын
35 seconds in literally laughed out loud. Awesome.
@wallacegeo48
Жыл бұрын
I don't buy Drill Hog products anymore. I have had way too many break. I know they will replace them for free. They still are not a good value for me. For cheap carbide drills, I much prefer the Harbor Freight brand. I always wait for them to go on sale and keep several sets on hand. I think with drill bits, the old adage "you get what you pay for" holds true!
@DeepSixCycles
11 ай бұрын
I've had really poor luck with cobalt drill bits in aluminum. They seem to be too brittle for gummy materials. But I haven't bought many cobalt. My supplier accidentally sold me some and they kept breaking in a proven production cnc run on the lathe. I will buy hss or carbide. But have limited experience with cobalt. I know some swear by them.
@Clough42
11 ай бұрын
Yeah, others have mentioned this. Bright HSS does very well in this application, and maybe the best solution is a wide selection. HSS, cobalt, carbide, short, long, imperial, metric, coated, polished, etc.
@ResistCircuitResist
Жыл бұрын
3d part looks great, actually surprised it wasn't stiffer. I know it was temporary. What infill did you/would you use for a part like this?
@Clough42
Жыл бұрын
Infill actually makes very little difference in most 3D-printed parts, since most of the rigidity comes from the skin. I think this part was printed at 20%. Perhaps doubling the cost of the part would have made it a little more rigid, but as you mentioned, it was temporary.
@joeylegaspi3515
Жыл бұрын
"... I'm a hobbyist and I like to do things well." That includes looking at a broken drill bit with a scanning electron microscope.
@LiviuGelea
Жыл бұрын
"DRO precision should be fine enough...". 5 minutes later: "16.009"
@lewsdiod
Жыл бұрын
Loving the content, that looks real snug and great, good job! Will your fingers be looking for the wheel sprockets now instead? (wink)
@hermansims2296
Жыл бұрын
First great episode, as always. I am coming late to the video so help me not have to search all the previous comments, but...What were the thoughts on the SAE and MM differences in shaft, screw, hex at the beginning? Again, great show. Thanks! Now on to the binging...
@gangleweed
Жыл бұрын
And now you need a swivel knob attached to one of the arms to stop having to do two handed left hand over right hand moves when you want to just wind the spindle down for small drills etc. .
@troyam6607
Жыл бұрын
be careful checking screws with a thing gauge like that while it may screw in, errors can be missed as some metric threads are close to imperial but the error will show further down the length of the screw.
@Clough42
Жыл бұрын
I generally haven't had that issue. The threads in these things are remarkably precise.
@krazykyle0
Жыл бұрын
What insert were you using to turn that aluminum? Looks like it was doing a pretty good job.
@machobunny1
Жыл бұрын
It is confusing. The PM machines come with a mix of metric and normal screws. You can be pretty sure whatever wrench you grab, it'll be wrong. Machines are great and there maybe a reason. I've often thought that they spec Am. Std. Threads for items that may need to be frequently accessed...but it's weird, regardless. COBALT DRILL BITS. I too have see this. Not on as many bits as you've seen, but I did get some cheap, chinese bits, and a 5/16 failed the instant it made contact. It was a large set of bits, and I've used the others very carefully with no failures. The metal can apparently develope micro cracks that their QC cannot detect, if they even have QC. It is nerve wracking, and I never use them on anything that I cant recover from. I feel sure I bought the set on Amazon, but they are not in my order history...Don't know the brand but they were not Drill Hog. Of course, Drill Hog may have bought the company that made the bits I have...who really knows where this stuff comes from?
@Clough42
Жыл бұрын
Yeah, I think that's exactly what happened here; a crack in the drill that they didn't detect, and I didn't notice.
@JohanVergeer
Жыл бұрын
Great video as always. I was just wondering about that chuck stickout, which looks like it is big. I once had a workpiece come out of the chuck and I was really lucky it flew the other way. What are your thoughts on this James
@buidelrat132
Жыл бұрын
Nice! Now how about adding a spinning knob to the wheel or some leather wrapping on the spokes? ;-)
@gregmarsen8536
Жыл бұрын
He needs a pine tree air freshener.
@davewilliams6172
11 ай бұрын
A 5/16 18 thread screw in a 16mm shaft with a 3mm key and a 6mm socket head in the screw...I didn't know NASA made milling machines.
@mikebroom1866
Жыл бұрын
..... Of course we want to see a video of an electron microscope.
@Squintz45
Жыл бұрын
Now you just need a Club so no one can take your mill for a joy ride!
@konzetsu6068
Жыл бұрын
how long will it take until he puts a tractor knob on the wheel i wonder XD
@624Dudley
Жыл бұрын
SEM +1. 👍
@wags9777
Жыл бұрын
Every drill hog bit I own has either came dull or have dulled too quick
@FullSendPrecision
Жыл бұрын
Hmmm. I'd talk to Drill Hog... I have the full cobalt set... Never broken one like that. Small ones, yes.
@broheim23
Жыл бұрын
Count me as a one more vote towards seeing a failure analysis of that drill.
@azz710
Жыл бұрын
I would love a video about your SEM experience checking out this broken drill.
@fatboyfester
Жыл бұрын
I have the Drill Hog HI Molybdemum M7 bits in stubby and standard length. And I have had several fail like that one was drilling delrin and one broke like that.. The worst thing is getting them warranted they act like they are doing you a huge favor by replacing them even though they are advertised and sold as lifetime warranty. It has got to the point that when one breaks I buy a replacement from MSC and throw the broken one away. I have never used excessive force or drilled without lubrication. Needless to say I won't be buying anymore or recommending them to anyone.
@fatboyfester
Жыл бұрын
Also I would love to see a video of the failure analysis you did on the one you had
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