Tim you experience and knowledge is invaluable. PLEASE make as many of these series on as many topics as you can!

I've been a sign guy for over 30 years. I drill holes all day long. Yet here I sit and watch for an hour about making holes. Tim, you are a treasure. Still learning and your real world knowledge is priceless. Love your stuff.

Mr Hunkin, I hope you have read all of our comments full of gratitude for your effort in sharing knowledge. Like many, I remember watching your TV series as a little kid, and feel that those programs were critically inspiring to me as a human. Now, as then, I absolutely devour your productions. It was incredible to see you are back at making videos to share your knowledge with the world, and I can’t describe how much I value your work and teaching. I think you are an amazingly expressive creator with a truly unique mind, and your exceptional humility should be a lesson in itself. It is certain that your work has inspired me deeply, and I can’t convey how thankful I am. I need to go visit your arcades one day! It’s a long trip from the southeast US, but certainly memorable for a lifetime!

My father was a Mechanical Engineer & later went into the shop as a Boring Bar Operator, in the Machine Tool Industry. He was also a Diesel Mechanic in the U.S. Coast Guard. Suffice to say, he was well travelled on most things mechanical. In my youth, he shared much of his knowledge, from metallurgy & tinsel strength of metals, to alloys & their various properties. In later years, I went with him to several machine tool shows, where I saw metals cut with EMD, high pressure water/steam, & even laser. I owe him a great deal, for the things he taught me, many of which I use every day. He would have especially loved to see the many things you discussed & demonstrated in this episode. Now in is 80’s, dementia has taken from him most of those memories, and he struggles with the basics. In some ways, this video was a stroll down memory lane, & a reminder of the man to which I owe so much. Tim, thanks for another fine video. :)

This is THE most useful series on the internet! Sometimes even the most trivial things are useful; this time it was using a magnet to collect swarf and the tip about grinding through the case-hardening to put holes through tooling and the like. I can’t imagine the thousands of new machines you’ve enabled people to build with this series, and probably hundreds or thousands of hours of frustration you’ve saved? Thanks and keep up the great work!

THE GREATEST intro in history of youtube

One of the best things on the internet. I can't tell you how happy I am to have found these videos. Thank you so much, Mr. Hunkin.

And here I was thinking... "I wonder when Tim's next video is coming out." And it just came out a few minutes ago!

This bloke is brilliant, hes in his 70s and still making brilliant episodes to this day!! Inspirational

Thank You Tim. Watching Rex and yourself all those years ago. Seems like yesterday. Wow time flies. Biter sweet memories. You are a very special person, Creative, Engineering and Fabricator. Truly a genus!

And I went in thinking I wouldn't learn much on this subject, but as usual, you managed to teach me something new over and over during this episode.

I’ve been making professionally for almost 30 years and yet still every single video Tim releases teaches me things I never knew. Thankyou tim!

I'm glad I'm not the only one who struggled with the old "egg beater" hand drills - they were a real lesson in frustration!

Fantastic! And not a double entendre in sight. What a pro. Thank you for such an informative video.

Surprised you didn't mention the Q-Max type screw-down punches - these are great for making very clean holes in thin sheet metal, and are also available in square and rectangular shapes. Step drills are also a lot better than twist drills for thinner materials.

Thank you for all the time you spent making this Tim. I often think old school engineering skills are being lost at an alaming rate. Fortunately you, Mustie1 and Shango66 keep it all alive. And yes, we miss Rex too.

Don’t think I’ve ever been explain how holes work. Ever. This is awesome.

If you look carefully you will notice that the multitude of tins and boxes on the shelves in the workshop, and the much used and loved tools, were there decades ago during the wonderful first series of masterpieces by this great bloke. So refreshing to see a well used workshop rather than a film set dressed up as one, equipped with wildly expensive new tools, clearly a product placement exercise.

Watching Tim handle the swarf is scary - My colleague was excited about seeing a pile of steel swarf, picking it up to show us, then realized that it quickly became sticky and wet with a red substance! Great episode tho.

I get so excited every time I see a new video! Thanks for knowledge! Best wishes!

i'm 60 and learning. Thanks Tim. Wish you long life

It's amazing to me how even with this hour long video there's still so much more detail to go about making holes in things. Like a science unto itself

thank you for passing all of your knowledge along Tim. You are a special person.

Kids listen to this man! You might learn something! This man knows his stuff!

A far from boring presentation about boring! Keep it up Mr Hunkin 😁

Puts all the knowledge in one place in an accessible manner. Used to watch "The Secret Life Of Machines" on TV way back when. All very enjoyable.

On sharpening metal drills: I was told by an old engineer that you know when a drill is blunt if when lightly pressed against the palm of your hand it does nothing when turned. You know it is sharp enough when you can lightly press it against your palm and it easily grips the skin when turned. Obviously requires skin like leather to work, but I can confirm that it is in fact true!

It's lovely to see you back Tim.

Tim, stainless steel. High pressure and low speed and drilling oil And of course sharp drill

The idea to catch swarf with a magnet is genius! Thanks for sharing the little gems as well.

These shows get a 10 out of 10!

I love this man! I’ve been following him since “The Secret Life Of…” TV show. It wasn’t just the information he delivered, it was the ingenious ways he simplified a concept so it was straightforward to understand! I have a Makita SDS drill similar to that one and it is the best drill purchase I have made. It drills, hammer drills and hammers. I have chased walls and split paving slabs with the attachments - all with great accuracy.

The Morse taper is news to me. Love your work Tim; especially the humour.

Your real world examples are very helpful in getting the concepts across. Again, thank you so much for sharing your knowledge in such an accessible and comforting way. PLEASE share more and more. Your channel is my absolute favorite. I only wish I was privy to your earlier work while I was growing up. Alas, in the United Sates I didn't have that privilege.

I've been looking forward to this next installment. Great work Tim, loads and loads of useful and interesting information.

Tim, thank you! I'm a relatively new maker of things and I find knowledge, inspiration, and lots of entertainment in all of your videos. I can only imagine how much effort it takes to go through all these examples from ideation through filming. Amazing. Thank you!

Welding up and re-drilling a hole so perfectly - masterful.

Found this channel last night and although I have been working with tools all my life, studied machining at college and make my living repairing things (everything) a bit of shop talk never gets boring.

I was going to sleep tonight, no, new video from Tim!

I just found your channel. I know a lot of this stuff already being 41 years old, but I have still picked up a few things. I love hearing anything from folks like you with a life time of experience. Keep up the videos they are really a joy.

Can’t tell you how happy I am to see more of these series, Tim. Hopefully you know how amazing these are and how much your work means to all of us. Keep it up and thank you

As a kid I watched SLOM and it really helped starting me off with my own playing with machines and gadgets over the years. Now I am watching you again years later annoying my partner by saying what you're about to say before you say it. All because you helped set me on that path of making stuff.

When they ask if I have an engineering degree, I say nope, but I am subscribed to Tim Hunkin on KZfaq. lol

Tim's videos are a treat! The most unusual drill I have used was ultrasonic, to make a 1mm hole in the wall of a 5mm diameter delicate quartz tube. Plasticine makes a container at the site of the hole for water and carborundum powder, rather like Tim's stoneage sand method. The drill bit is a tungsten needle vibrated at ultrasonic speeds, niftily making a hole in the glass without cracking it.

Hello sir. I loved your show on C4 in the day. I watched it with my dad. Thanks.

something about these vids makes you stay longer time watching it, maybe that nostalgic vibe.

The wolrd needs a TIm Hunkin and Jimmy Diresta Collab!! #GOATS

26.14 time, the Jolly Green Giant, was standing behind you. He was born in Le Sueur Minnesota. Thanks,From St.Paul, Minnesota.

Tim Hunkin needs to be recognized in the Honours list.... purely because he deserves it.

Thank you Mr Hunkin, Your channel is one of my favorites.

A genius compilation of techniques which contained many tips even for a seasoned hole driller like me. Thanks Tim. Your videos are pitched perfectly for someone like me who needs an introduction to the subject of, say milling, but doesn't want chapter and verse on the finer details. I must take my kids to your London arcade and show them that engineering can be pure fun. Thanks again.

Splendid video as always Sir. Holes, who would have thought there was so much in them. I can see you've looked into them quite deeply.

Drills hole in driveway - a commitment to education.

This “secret life” series is a treasure trove. Not just for us watching today but it’s an archive for future generations. Keep it up Tim and thank you 🙏

Been in engineering all my life and having worked on all manner of equipment, much of Tim's stuff is quite familiar to me ........however, rather like reading a favourite and well known book again, I find Tim's shows so relaxing and entertaining. More power to your elbow, sir - keep 'em coming!

This brought back so many lovely memories of my dad as a tool maker and my school days in metalwork. I need a workshop to use all my tools in and my knowledge of electronics. It also makes my day to see some of the solutions I’ve come up with over the years match yours. I can see your enjoyment in what you do and thank you for sharing. It made my day when I found your channel. I used to secretly watch your programs on my B&W TV back in the day as a teenager. All the best.

Another wonderful episode, thanks a lot!!!

I wish you'd have added something about using cutting oil, I remember when my life changed when I found the stuff, almost as magical as discovering flux when soldering.

You should see the sorts of bores they use in gunsmithing! Would you consider doing a Q&A here one day perhaps? All the best!

TY 4 reminding me what I use to do as a marine machinery mechanic on nuclear submarines for 33 years!

Can't believe you didn't include step drills, I use them all the time particularly for electronics enclosures.

I was excited when I discovered old copies of the original series and I’m still excited every time he uploads a new video. Like the BBCs Bill Nye

Ahhhhhh! I just found this. Thank you Tim. Love your content going back to secret life of machines. You’re an all time fav!!

Always interesting, I can spend hours watching this

This is fantastic - how to make the bit that isn't there. I have drilled more holes than I've had hot dinners, by some margin, and I still learned quite a few new things here. I especially love the attention to body posture and leverage. It's incredibly important and I don't think it gets the attention it deserves. Bravo!

If I ever go to England, a visit to the Hunkin arcade is a must. In fact, that would be one of the main reasons for going to England in the first place!

Dear Mr Tim Humbled by your knowledge and willingness to share the same to us. You are covering all aspects of Engineering, electrical and Controls etc . I run an Engineering workshop in Qatar. You are a treasure trove of knowledge. Please continue your endeavour of sharing the knowledge and great experience . Thanks from bottom of my heart

Tim. Thank you so much for your time and effort and your desire to share your knowledge and skill with the whole world hopefully for generations to come.

Beads of stone& glass, pearls, teeth claws & whatever have been drilled for thousands of years by natives/indigenous people and I've got no F'n clue how they did it & was hoping for more of that. Also, a good hand drill works well, the problem is most are cheap crap constructed, use a decent one & you'll see, even Push Drills about 2 feet long are great when they are quality made. Also, also, THANK YOU for the pilot drill endorsement, can't believe all the big stuff I see done on KZfaq(CEE that's you) done pilot-less!!

Dear Tim: always love everything you do....missing Rex, but sure everyone does....best wishes, from Florida, USA.....Paul

Really enjoyed watching this. Wish I'd known about your videos when I was teaching Design & Technology (Resistant Materials), I'm now retired. Would have shown them to the students who would have loved them.

Dear Tim, For me you are a real expert in explaning tech. I greet your modesty. Vincent from Belgium

The secret for stainless is to rotate MUCH slower than you'd expect, but firm downward pressure. Also a great use for those cobalt drill bits that give you trouble in other metals.

My grandfather used regular nails, flattening the tip and cutting off the head for a drill bit in a pinch. One of the first tricks I learned from him ^^ - probably because I was not allowed to take the good drill bits for my own use as a child 😁

Finding you years after your super inspiring 'Secret life of. .' series is a genuine thrilling pleasure, thanks Tim

You remind me of my grandpa who had a room full on screws, bolts, nuts, washers and many other things i didn’t understand then. Thank you for taking the effort to educate us. Subscribed. Greetings from India

Don't stop tim you are so interesting the way you present your humbleness and expertise and bloody cleverness ..you should be on telly 😅

I'm sorry to disagree , but you ARE an expert . A brilliant legacy for youngsters to learn from.

Tim you're the most humble gentleman. Thanks for sharing your knowledge with us. I'm loving the continuation of the series. I watched most all of the shows from the past.

My favorite ‘hole’ cutting of all time is the *marble Jali screens at the Taj Mahal* and etc. walls/windows/dividers of solid stone almost as thin, translucent and intricate as lace. The smallest yet most awe inspiring part of the structure imo

Tim, you are a National Treasure. What you presented as a "fly-cutter" is usually known as a boring head (and it takes small boring bars as you showed on your lathe). Setting exact diameters can be done by just making a hole that's undersize, measure that, then adjust the diameter (which can be done very precisely). As usual with precision machining take the last deep cut as two about equal halves, the error on the first half can be compensated on the second half and it will come out almost spot on. .. a fly cutter is a bit different, rotates faster and is used for taking (usually very shallow) large facing cuts, which can give a very fine surface finish

Thanks for your comprehensive information.

Tim, I really appreciate you taking the time out to pass along your knowledge and experience and inviting us into the shop.

I'll just say it. I wish more old guys would post videos. You're brilliant and you're experience is irreplaceable. Please keep it up.

I laughed out loud when you mentioned that the fly cutter looked "improbable". They really do look pretty wild. haha

100% true in the 60s I think it was at DeHavilands Hatfield, I understand to do with turbine blades, the lead machinist couldn't get a good finish on a cut after trying every type of cutting lubrication. Out of frustrated desperation he threw the SALAD CREAM out of his packed lunch at the machine as a joke, and all of a sudden got a perfect optical finish. The company went out and bought large container amounts of that brand wholesale. They added a disinfectant to it.

this man is a human treasure

I broke nearly every one of those tiny carbide drills initially. I was using a hobby minidrill - the ones based on a 540 motor, the black and decker version of a Dremel - and it turned out that the chuck just isn't concentric enough. I didn't break nearly so many when I used a collet instead. Later, I got an old 'precision drill' : an ancient device, but made to a much higher standard in the '60s. At first, I tried to put a collet chuck on that too, as I thought I'd start breaking drills again. But I couldn't find one to fit, so I used the original tiny Jacobs chuck. It had no problem.

I’m really enjoying these videos and have always been a fan of Tim’s style of presentation. I also like the blend of history and practical tips. Seeing the brace and bit took me back. My dad had one and we used it for everything before finally getting a power drill.

I enjoy every episode of Tim Hunkin's chanel. People who like this might like " Sharpening Drill Bits - The Long Way Round " on the This Old Tony KZfaq channel which has some detail on the shape drills are and how to sharpen them

One really useful tool I discovered during my apprenticeship was the Abrafile. It's basically a round cross-section saw blade that allows you to cut in any direction. It's ideal for cutting irregular shaped holes in sheet metal. Thanks for another enjoyable video.

Now that wasn't a boring video! 🙂

Dear Tim, back in the 1930's when my dad got out of high school in New Bedford , Massachusetts, he went to work for the Morse Drill Bit company before he went into the army to fight in WWII.....I have a wonderful drill bit index for numbered bits that is a folding triangle device , stacking the bits vertical from #60 to

Thank you for making this video. It's like a master class in machining.

I think it's funny that you preface by saying you had thought drilling holes was trivial, then proceed to make a full-hour video on making holes. I really enjoyed your original television series and love this new material, especially the design aspects of making the machines.

Fantastic video! Tim Hunkin is a genius!

mr hunkin back again! i'll be enjoying this one as i've come to realise that there's much to learn about holes through my projects!

Tim you are awesome ! Thank you for sharing .

This is my favorite episode. Thanks for sharing so many useful tips. The drill press variac mod is awesome! Reverse - yes!

Always a pleasure to see a new one from Mr. Hunkin. Stands out like an island in the sea of stupidity that is youtube. Never disappoints. Always genuine.