Broken Bolt Extractors and Drill Bits
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Date: 2020-08-05
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Comments and reviews: 10
Gage
WOW. those extractors are HUGE! What are you working on. the Golden Gate bridge? I've used nothing but the spiral fluted kind and on nothing larger than a 5/16 fastener. The vast majority of broken off fasteners have been 10/32. Yes, the spiral fluted ones break off. and that's the worst situation you can have because the material that the easy-out is made of is to hard to drill. If (God forbid) an easy out breaks off we would vibrate it out of it's hole with a rivet gun and a header with a hole in the center. Failing that. we'd call a machinist. (Embarrassing) I've had the best luck with a little extractor I bought from Sears Craftsman, of all things. It has a big hex for turning and a short spiral fluted tip. 6: 12. I have no idea what it's made of but I've extracted many many broken fasteners with it and it hasn't dulled too much yet in all these years. The number 1 thing I learned about broken off fasteners. don't break them off in the first place. I used to be VERY good at getting stuck fasteners out without breaking them off. Not any more though. It's a lost art. Determination goes a LONG way in not breaking them off though. You just imagine that fastener coming out with all your bionic powers. and then your Kung Fu is strong. ;)
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WOW. those extractors are HUGE! What are you working on. the Golden Gate bridge? I've used nothing but the spiral fluted kind and on nothing larger than a 5/16 fastener. The vast majority of broken off fasteners have been 10/32. Yes, the spiral fluted ones break off. and that's the worst situation you can have because the material that the easy-out is made of is to hard to drill. If (God forbid) an easy out breaks off we would vibrate it out of it's hole with a rivet gun and a header with a hole in the center. Failing that. we'd call a machinist. (Embarrassing) I've had the best luck with a little extractor I bought from Sears Craftsman, of all things. It has a big hex for turning and a short spiral fluted tip. 6: 12. I have no idea what it's made of but I've extracted many many broken fasteners with it and it hasn't dulled too much yet in all these years. The number 1 thing I learned about broken off fasteners. don't break them off in the first place. I used to be VERY good at getting stuck fasteners out without breaking them off. Not any more though. It's a lost art. Determination goes a LONG way in not breaking them off though. You just imagine that fastener coming out with all your bionic powers. and then your Kung Fu is strong. ;)
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Betos
Back bolt driver side Ls 6. 0. I swapped it in my regal freshly wired brush cleaned and painted and I just noticed that dam bolt stuck flush in there. Luckily I can get a extension and reach it through the wheel well but no luck on removing. I scratched the head up a bit tryna drill a small hole to punch something in there to extract it. I was so frustrated called it night before I made it worse and now Im here. I need a good extractor kit, Home Depot or harbor should have one right? I broke so many drill bits drillin a tiny hole on that bolt
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Back bolt driver side Ls 6. 0. I swapped it in my regal freshly wired brush cleaned and painted and I just noticed that dam bolt stuck flush in there. Luckily I can get a extension and reach it through the wheel well but no luck on removing. I scratched the head up a bit tryna drill a small hole to punch something in there to extract it. I was so frustrated called it night before I made it worse and now Im here. I need a good extractor kit, Home Depot or harbor should have one right? I broke so many drill bits drillin a tiny hole on that bolt
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Donny
Just to be clear I was only asking if the heat did mess with the temper and I understand now because I use to work in a body shop and if one of my snap on or matco tools broke I just had it replaced. people who do not know trust me you pay enough to purchase the tool that they should fix or replace any broken tools. so sorry if you thought I was trying to bash you or anything. can't imagine the rust you must deal with. I live in Tennessee. so not as bad here but still your information on removing broken fasteners. very educational
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Just to be clear I was only asking if the heat did mess with the temper and I understand now because I use to work in a body shop and if one of my snap on or matco tools broke I just had it replaced. people who do not know trust me you pay enough to purchase the tool that they should fix or replace any broken tools. so sorry if you thought I was trying to bash you or anything. can't imagine the rust you must deal with. I live in Tennessee. so not as bad here but still your information on removing broken fasteners. very educational
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Justin
the fluted kind are my favorite and i never see them any where for sale. but haven't looked in 20 years. i'll try amazon. the benefit to those is you grip the entire stud if you drill it all the way, where as the tapered not only expand like you said, they also are only gripping maybe an 1/8th of an inch and i always snap em off. i have a husky set like your mac set. got it from home depot and its for removing broken off threaded water/gas pipe. make sense rigid would make it since thats there history.
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the fluted kind are my favorite and i never see them any where for sale. but haven't looked in 20 years. i'll try amazon. the benefit to those is you grip the entire stud if you drill it all the way, where as the tapered not only expand like you said, they also are only gripping maybe an 1/8th of an inch and i always snap em off. i have a husky set like your mac set. got it from home depot and its for removing broken off threaded water/gas pipe. make sense rigid would make it since thats there history.
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adam01212
Ive found left handed drill bits can also be handy because even if they dont extract it (and you have to use an easy out for example) at least you are drilling in the reverse direction, so I guess at least youre not tightening the broken bolt. also door hinge drill bits can help you get your hole exactly centre (and you can use left handed drill bits with them as well as you can change the drill bit in them)
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Ive found left handed drill bits can also be handy because even if they dont extract it (and you have to use an easy out for example) at least you are drilling in the reverse direction, so I guess at least youre not tightening the broken bolt. also door hinge drill bits can help you get your hole exactly centre (and you can use left handed drill bits with them as well as you can change the drill bit in them)
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Douglas
2: 37 out of all the bolt extractors I've used, this one is the only one I've used that ever worked. Concept being one can use the collar to center the drill over the crown of the busted bolt/stud. You don't have that, forget it.
i consider SMA to be an absolute pro, so I'm not questioning him. Just relating my experience
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2: 37 out of all the bolt extractors I've used, this one is the only one I've used that ever worked. Concept being one can use the collar to center the drill over the crown of the busted bolt/stud. You don't have that, forget it.
i consider SMA to be an absolute pro, so I'm not questioning him. Just relating my experience
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Emmet
Pro tip Every mechanic has torx bits. if you grind the tip flat and drill the home just under it works as a flute extractor. If you have a kit with the torx bits in it works down to a small size.
Living in Wi for ten years torx bits has saved my briskets more than once.
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Pro tip Every mechanic has torx bits. if you grind the tip flat and drill the home just under it works as a flute extractor. If you have a kit with the torx bits in it works down to a small size.
Living in Wi for ten years torx bits has saved my briskets more than once.
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neutered10mm
I have an EFI 460 in an E350 van with 3 busted exhaust studs just below flush. fairly sure the heads are cast iron. would the welding method work since cast iron is so difficult to weld and shouldn't blend with the weld puddle inside the washer/nut/stud?
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I have an EFI 460 in an E350 van with 3 busted exhaust studs just below flush. fairly sure the heads are cast iron. would the welding method work since cast iron is so difficult to weld and shouldn't blend with the weld puddle inside the washer/nut/stud?
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Matt
Does anyone have success with the box-wrench style extractors? It sorta looks like a ratcheting box end wrench, but it's actually a jagged/spiral design that supposedly grips onto the rounded bolt pretty well. I realize rounded bolts is a different subject, lol.
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Does anyone have success with the box-wrench style extractors? It sorta looks like a ratcheting box end wrench, but it's actually a jagged/spiral design that supposedly grips onto the rounded bolt pretty well. I realize rounded bolts is a different subject, lol.
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Aaron
Transfer punches work good for getting a punch mark in the center of a bolt that's broken off in a hole. Gives you a better chance of drilling in the center. I have used an end mill in a drill to make a flat surface on the broken bolt too.
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Transfer punches work good for getting a punch mark in the center of a bolt that's broken off in a hole. Gives you a better chance of drilling in the center. I have used an end mill in a drill to make a flat surface on the broken bolt too.
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