Azeo226 this is what I’m trying to do now and what brought me to this video.

Im trying drill out a piece of extractor that broke off in into a broken screw. double wammy

@@honorablewiz7447 This might help- kzfaq.info/get/bejne/bbBzmah-16nOmJc.html&t

Where is the beryllium in relation to this video?

Thanks 👍

I would not recommend solid carbide as they are too brittle. I tried drilling this same bearing race with a carbide drill in the pillar drill and it snapped. ARTU recommend setting the drill to it's fastest speed or 2000rpm with no lubricant/coolant.

I've also drilled out a broken tap, using a diamond coated hole saw- kzfaq.info/get/bejne/bbBzmah-16nOmJc.html&t (just another option) Thanks for the comment 👍

Yes, I think the friction generated helps to soften the steel. Thanks for the comment 👍

That's what I was thinking. Though maybe not exactly the same, this reminds me of friction drilling.

I could not find them on eBay, but found them on Amazon- fave.co/2ndOAhC Thanks for the comment

ChuckPlains Thanks for the comment

They probably would do, but I have not tried it yet. I have used these to drill out a broken tap though- kzfaq.info/get/bejne/bbBzmah-16nOmJc.html&t Thanks for the comment 👍

Ha Ha, These bits are good but it is hard to get them started sometimes as they are not sharp, so a better option might be solid carbide drills- But solid carbide drills are very brittle and can easily break so a drill press and good technique are essential.

Use small bit through the plug then slide hammer it out

Não foi dito. O correto seria colocar uma velocidade/RPM bem baixa pra evitar desgaste. Acho que ele não se atentou e mandou ver, mas isso vai destemperar a broca mesmo.

No, the manufacturers of the drill bits recommend not using any coolant/lubricant. Thanks for the comment

thank you for helping us and replay . how about other drill bits?

toolman talal You are welcome Most other drill bits require a coolant when drilling metal.

thanks alot.

toolman talal You are welcome

Hi Sean, I can't remember if the bit went all the way through, but I think it did. Bearing races are much tougher steel than a seat-belt tongue, you should be able to drill that just using a cobalt drill bit. Just take your time with it and use plenty of coolant/lubricant, like in this video- kzfaq.info/get/bejne/hsdgmMpqv5fJe4U.html Thanks for the comment 👍

@@ultimatehandyman fantastic.. thank you, I had a tongue that's gone through 8 bits, ok drilling to start, then it just stopped going through like it'd hit kryptonite or something🤣 But after watching the video you linked i think i can safely say it was my poor technique... 🤣 Thank you so much. .👍👍👍👍👍

@@seanditch4419 You are welcome. I must admit that I have struggled in the past, but after learning from others I now find drilling most metals a piece of cake. Thanks for the comments ;-)

@@ultimatehandyman Quick update for you, after watching your video, Using the same set of cobalt drill bits, 2 holes drilled within a few mins, clean as a whistle. A 4.8.mm straight fron scratch, then i largened the hole i struggled with yesterday with a 5mm. Perfect... thank you😁👍👍👍👍👍👍👍👍👍👍🍎🍎🍎

I've never tried TTP hard bits, can they drill through a bearing race? Thanks for the comment

Through the center ;-)

You can get them on ebay- fave.co/38PR7ki Or direct from the ARTU website (just Google ARTU) Thanks for the comment 👍

A lot of tooling you never want to use a cutting oil. Coolant can be used for many but a lot of harder steels are dry cut using proper tooling. Usually multi flute coated end mills works best.

You do use a coolant or lubricant when drilling normal steel with a traditional drill bit, but this is hardened steel and can only be drilled with a specialist drill bit, which specifically tells you not to use any coolant/lubricant. Thanks for the comment 👍

They can work with a mains voltage hand drill, but you have to use them on a high speed with no lubricant/coolant. Thanks for the comment

Yes, according to their site- www.artu.com/multi-purpose-drill-bit-products.php

+Tiivi Vaavi No, the makers of the drill bits (Artu) recommend drilling hardened steel on the fastest speed setting with no lubricant. Thanks for the comment

The tip of the drill is tungsten carbide, no it will not drill through carbide, but this will- kzfaq.info/get/bejne/rrB5g8h_ppetqas.html These are handy if you need to drill out a broken drill/tap etc- kzfaq.info/get/bejne/bbBzmah-16nOmJc.html Thanks for the comment 👍

Yep, they do. Drill through most anything. HSS, engine valves, hydraulic lifters, case hardened parts all drill fine. I tried everything hard in the engineering workshop.

It might be down to the quality of the bits. The ARTU ones are very good quality.

One of these should easily do it, as long as you take your time and use plenty of lubricant/coolant- kzfaq.info/get/bejne/framY7phurTIm6c.html Or for thicker material- kzfaq.info/get/bejne/hKuIp8Jlvpy7nac.html

@@ultimatehandyman Thanks very much! That second one looks perfect if I can find the SAE equivalent here in the USA. Don't have room for a full impact, but I do have a stubby air impact (albeit limited air compressor supply) and an electric angle drill on order. Will soon find out how they work!

@@ultimatehandyman This company's products sound almost too good to be true, but I've just found their US contact info, ordered the Impacta step cutter and versa adapter (altho won't be able to use the adaptor for most of this job) and some spray lube. By the way, I called and actually got a live person! Thanks very much for the suggestion, this seems perfect!

@@DellAnderson That is exactly what I thought. From experience I know that it is easy to make a product look good in a video. I have tried their tools out and was super impressed with them. My old boss buys a lot of cutting tools from them now, as they are really useful for the work that he does. He has been in engineering for over 50 years and even he was impressed with them 👍

I'm not sure what the HRC of a bearing race is, but it's one of the toughest steels available and these bits can drill through it.

😂😂

Yes, I normally use coolant/lubricant when drilling steel, but these drill bits require the heat caused by the friction 👍 I have to say that some of my ARTU drill bits are for for the bin now, but bearing race steel is incredibly hard!

@@ultimatehandyman So would it be wise to think of such bits as "sacrificial"? I mean more similar to cutting wheels than to normal drill bits?

@@Gsazraetr Yes, these bits are fine for drilling masonry/porcelain/glass etc. But when drilling a tough bearing race, just consider them to be sacrificial 👍

​@@ultimatehandyman Thanks very much for the insight! Last question- SOLID carbide drill bits on (unhardened) stainless steel. Should coolant/lubricant be used or not?

@@Gsazraetr I would not use solid carbide drill bits, unless they are in a drill press, or lathe. For drilling stainless steel, a cobalt drill bit works well and is much less brittle than a solid carbide bit. But if I was using solid carbide, I would use coolant.

These seem to work exactly the same way. It's recommended to use these on the fastest speed with no coolant! Thanks for the comment

+rajen ojar You can sharpen them but you need a special grinding stone as the tungsten is too hard for a traditional grinding wheel. You can buy a small one that fits in a drill, I'll cover this when I get chance ;-)

@@ultimatehandyman you just need regular diamond coated aluminum wheel to grind carbide...

You are welcome. Thaks for the comment and very well done ;-)

It is recommended that no coolant or lubricant is used with these bits when drilling hard steel. Thanks for the comment 👍

@@ultimatehandyman - Just curious about the reason for that recommendation?

I look forwards to seeing your video on how to drill through a bearing race. Please let me know once you have uploaded it.

+john kilner Yes, you can but I'm not sure if they would be as good as the ARTU bits although they should work.

you can ,but first you have to sharpen bit with diamond wheel....

These bearings are used as the thrust bearing on wheels that between them hold bogies weighing about 13 tonnes (there are four wheels on each bogie). The thrust bearing is covered in high temperature grease and is held in place with grease seals. During the industrial process the bogies are put into large ovens, but the maximum temperature of the oven is only 120 degrees C, which is not hot enough to normalise the metal. All the bearings used on the wheels look as though they have been heated but they have not. I still have the bearing if you want to come and try sawing it with an hack saw you are welcome ;-) Thanks for the comment

Samir Ammarcha Lubricant's or coolant are not necessary with these bits ;-)

The instructions state that you need to use the highest speed with no lubricant for these drill bits. Thanks for the comment

***** Thanks for your reply. I have actually broken the tip of a 6mm the 1st time round as I've used high speed. After this I've used oil and slow speed however I get the point you've made with regards at the manufacturer's instructions. I wonder if you follow their instructions and the drill breaks will they give you a replacement? Is there any warranty on these drill bits? Thanks again for taking your time to answer my question!

mcorco1 You are welcome ;-) I'd definitely get in touch with them and tell them about the drill bit failing on first use. They should replace it for you. Thanks for the comments

***** Hi, Sorry to bother you again but I am really stuck and need some advise. I bought 5mm, 6mm, 7mm, 8mm, 9mm & 2 x 10mm Artu drill bits from ebay seller e-happyhome. I've paid around £50! The seller claims that these drill bits aren't suitable for Stainless Steel as in their disclaimer places this type of steel in the soft steel category. I know that is wrong as stainless steel is one of the hardest metals. Now, because he wrote in his disclaimer that these drill bits aren't suitable for stainless steel he gets away without replacing or refunding these bits. The 5mm & 6mm drill bits I've used them at high speed and without any cutting oil and disintegrated almost instantly. After this experience this I've only use these bits on slow speed with cutting oil and it seams that they work better. 7mm & 8mm worked fine however 9mm & 10mm worn quite badly. I've given this seller on ebay negative feedback for my buying experience with him and he managed somehow to get that removed. He recommended me to use FESTA drill bits to drill my 316 Stainless Steel! Do you know anything about these drill bits & how suitable are for drilling stainless steel? My father used to be a machinist and worked in the industry for 40+ years and he used to work with VIDIA drill bits which were the best at drilling hard metals & anything for that matter but cannot find any to buy on UK market. I'm asking you this as I believe that he doesn't seam to know much about steel since he places SS on the soft steel category and do not want to invest in FESTA drill bits at his advice! I look forward hearing from you soon. Thanks in advance!

mcorco1 Compared to hardened steel Stainless is considered soft. The Festa cobalt bits are good on stainless steel, but they can be difficult to sharpen as the end of the drill is sharpened quite differently to a normal HSS drill bit. Having said that as long as you use plenty of lubricant the drill should stay sharp for a long time. I actually got some Festa Cobalt drills for a friend of mine who drills stainless on a daily basis and he was very impressed with them.

You have to go as fast as possible with no lubricant as the generated heat helps to cut through the hardened steel.

Pypamid Darwen, Lancashire, England ;-)

These drill bits have to be used on the fastest speed ;-)

You don't need a coolant/lubricant with these bits. If you use one, the bit will not drill through hardened steel ;-)

You don’t need lube with these drill bits 😉 Thanks for the comment

Yeah, it drilled it, but the drill bit was pretty much fit for the bin afterwards. Bearing race steel is incredibly hard though!

I look forwards to seeing the video of you drilling a hole in a bearing race with a ceramic bit. Please let me know when you have uploaded it. If you could make the hole about 8mm diameter like in this video that would be great.

Ultimate Handyman. First off not an issue! Today at my shop I will show you how to drill a hole through a whole 160mm dia boat bearing top to bottom all as a solid unit! Balls and all inside cause ceramic bits chew hardened stainless bearings as part so fast and easy the balls won't even roll out of place inside as it cuts right through one. You ramble on and on about how your such a skilled milling professional every time people call out they are masonry bits... But if you where really skilled you would know carbide hates heat and to cool it. You would get a better chip rate at 10-20,000rpm drilling a stainless race like we do in my shop weekly for orders. But unlike you we use carbide inserts or ceramic insert bits. What you have is garbage masonry bits made with steel with a sharpened carbide braised edge put on that last 1 or 2 holes with a titanium nitrite coating to hide it.

Oh dear. You seem to be confused, firstly I have not claimed to be a “milling professional” anywhere, I have simply demonstrated how to drill through hardened steel, which has obviously triggered you! The makers of these drill bits “Artu” recommend not using any coolant on their bits when drilling hardened steels- www.artu.com/multi-purpose-drill-bit-drilling-tips.php Please let me know when you have uploaded the video and I’ll critique it 😉

It might be a good idea not to comment in future on things you know nothing about ;-)

cos you have spare time to arse about with freebies and making videos that don't actually help don't take it out on me. I know it's business. OH and plz don't ever question my knowledge on being a handyman. It might not be a good idea to comment cos we all want to weld using a drill mmm! and i'm being nice so have good luck ULTIMATE HANDYMAN.com

What freebies? You mean the ARTU drill bits that I purchased to drill some hardened steel ;-) These drill bits are designed to be used at high speed with no lubricant or coolant, so before you criticise someone that clearly knows more than you do perhaps you better think before posting nonsense next time ;-)