How to drill out a broken tap | drill out a broken screw extractor

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Published 2018-10-14
In this video I drill out a broken tap using a JCB diamondtech holesaw. Drilling out a broken tap or drilling out a broken screw extractor is often very difficult and most people would get the broken tap or broken screw extractor spark eroded. There are not many drill bits that will drill HSS taps or screw extractors as they are harder than most drill bits, but the JCB Diamondtech holesaws slowly remove the hard steel. The Diamond Tech holesaw cost £17.50 from Toolstation (I’m not on commission) www.toolstation.com/shop/Power+Tool+Accessories/d8…


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All Comments (21)
  • @nopleaseno2515
    God bless you, your wife, ex wife, children, siblings, mom, dad, grandparents, dog, cat, pets, house, garage!!!! So needed this video right now!!
  • @MrBscott78
    YES! This worked for me. In the past I’ve used diamond hole saws on enameled cast iron, so I’m not sure why I didn’t try it immediately. Instead I tried the Dremel route, as recommended on many videos and discussion boards. The thing is, Dremel grinding stones wear away pretty quickly, and they aren’t all that cheap either. A 2-pack of conical burrs is $15 CAD, and I quickly went through about 4 of them grinding down maybe 1/3 of the broken EZ out. The diamond hole saw was $25, but it ate through the remainder in under 5 minutes! That’s with me being patient and frequently dipping in water as he does here. After that it was simple enough to drill out the sides of the hole, re-tap, and Bob’s your uncle. It’s also worth pointing out that multiple mechanics and machinists I spoke to didn’t offer any solutions to the problem. Kudos, man, thanks for the tip!
  • @Artur1959
    That cup of tea before the job gets on top of you makes the difference between smashing the whole piece, and continuing with the fine, slow and relentless spirit. thanks
  • This video took a massive amount of time to film and edit, which is why there was no upload last Sunday (I’m also busy working and busy doing other things). Please like, comment and share the video (if you can), as it really helps me out. I hope everyone has a great Sunday 😉
  • I can't believe you did this as a demonstration! You must love spending time in the garage. This situation is one of the worst
  • @icespeckledhens
    Thanks for demonstrating a procedure which most of us try to avoid but sometimes you have to do it. As you showed, it's very time consuming and patience, care and persistence is essential. Thanks
  • @GrahamDIY
    As always, great video 👏👍 In particular, your advice to “take a break” and “not to let it wind you up” is superb advice for someone who is learning about any jobs really. Finally, I’d never even thought to use a “diamond tile hole saw” to drill out metal. I know I know, some will say it’s “obvious” - but it wasn’t to me. So thanks 🙏
  • @mikef3300
    Thank you so much for uploading this video. I broke an ez out off in a transmission pan bolt and was able to remove it using your method. Your knowledge is greatly appreciated
  • @uktony1525
    The sound of crying when you broke the tap was me. Very, very impressed as I have always considered a broken tap deep within a stud hole as being an unrecoverable situation. A HUGE thumbs up.
  • @pavelsustr2145
    Kudos to your video and thank you for posting! I broke a bolt extractor, and your removal method was the only one that had worked. To make matters worse, the area was hard to access, so I had to get a right angle drill attachment and a quick release diamond hole saw. Turned out to be a two day job, but in the end I succeeded. Thank you!
  • @rodgerq
    Love the idea of a bolt as a centre guide, so simple and effective! Great video.
  • Great video yet again....As a compulsive fixaholic I love to see stuff coming back from the grave.....I've spent a tenner to fix stuff worth a fiver just because I can! Keep up the good work!
  • @hpt08
    This has to be an Ultimate Handyman platinum edition video. Pure gold at any rate!
  • @rowdy97914
    Thank you so much I’m fighting a broken easy out and bolt flush at the front of my crank this idea is the only one that seems to be working
  • @55boomhower
    I used this method as a last ditch effort and it worked!!! Broken bolt on a boat motor wouldn’t break loose after welding a nut on, heat, broke an extractor off in it, but this got it out. Took 45 minutes or so using his exact method! THANK YOU FOR POSTING THIS!!!
  • @rickguyevans
    What a great video...being a much more experienced millwright at a food plant in Canada, I am constantly being asked to remove broken bolts/taps/extractors from stainless equipment! The younger ones just don't have the patience or experience in removing their mistakes. Once worked with an expert in a steel mill who was able to remove any broken object in a threaded hole. Cheers and thanks for sharing. Rick from Hamilton, Ontario:)
  • @luketuttiett
    That’s an excellent point about not letting jobs get on top of you
  • @cobberpete1
    A lot of Time, Effort, and expense in showing us these Videos. Much appreciated. Thank you
  • @Yawwee
    I really like that idea to have a hole in the center of a bolt to guide your drill bit in nice and straight and not ruin any threads when drilling in the broken bolt !!!! Ingenious !!!!
  • @gxltdprado
    Only recently found your channel and have learnt so many things already. Very professional and practical advice to match. Thank you for your efforts!