This has been an ongoing dilemma for me with my car. I am trying to wokr on my rear brakes. 96 ex 4dr allwheel discs and im trying to get one of the rotor retaing screws out of the rotor and well the part where u grip with a phillips head socket is gone and im trying to drill into it and get it out but i can't i breeak off drill bits and i can drill into it. Its like a polished little slug in the rotor. I have use all manner of screw extrators from craftsman i got one screw out but now this second one is just frreakin rediculus!! I can't get a drill bit to bitew in a and strart digging at all and i don't want to have to getra new rear spindle !!!

 

does no one have any ideas aon how to geta screw out??? am i that dumb or what...ok don't answer that i already know the answer but still what am i to do!???

 

Sorry, I was trying to figure out what a 'Fing' Brake was

Well depending what tools you have available makes all the difference.

Your procedure isn't at fault, it works 90% of the time.
You might try applying some heat, so that the screw looses temper and is easier to drill. A dimple from a center punch can guide the bit until it gets going on its own.

My next step would be a dye grinder, and I would use it in one of two ways.
1) with a ball shaped grinding stone, grind off the head of the bolt OR
2) with a small cut-off wheel cut a groove across the face of the bolt, apply some heat/penetrating oil, and break it loose with an Impact Screw Driver.

P

 

ok well that might work but heres kind of what it would look like just imagine there is no place to fit anykind of cutting wheel or anything this is kind of an illustration ow what you would see ------____----- and the lower part is about 4 or 5 mm the thickness of the screw that goes thereso i can't put a slit in it to turn it or anything and the metal of the screw is pretty much polished right now from the drill bits so i can't get anything to bite down and grip on it at all!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by P_Adams &raquo;</TD></TR><TR><TD CLASS="quote">2) with a small cut-off wheel cut a groove across the face of the bolt, apply some heat/penetrating oil, and break it loose with an Impact Screw Driver.

P </TD></TR></TABLE>

this one saved me from having to explain to the Mac man why I keep braking so many Phillips bits, haha.

 

Bypass the True Value store and go straight to Craftsman.
Carbide tipped twist drill(s), a small center punch and your Bob Villa approved screw extractor set.
You're going to want to "sneak up" on this by first setting a starter point with the center punch. Next you're going to drill it out with the small(er) bit you picked up to a depth of about 3/8 of an inch. Once you've done that, then you can run the larger bit (the one recommended for the "Easy-Out") down to the same level. The S.E.S should be able to take it from there.

Just a reminder: High Speed drill bits are NOT meant to be spun at high speeds. The High Speed reference is to their ability to drill and cut faster at slower speeds. You might actually be burning out your bits (the cutting edges start to melt and round off). Use some cutting oil too.

P

 

ok all of the bits and tools i have have been craftsman i used all kinds of screw extractors. I just got a new set at low spped like 25 rpms like real slow and then switched to the reverse thread extractor and the bit snapped in the whole and its at an angle so there is no way for me to get a bit to bit at all now i go real slow and using cutting oil it just spinns even at low rpm i hate these damn bits the just snap so easily!! i know im not doing it right but how do i get myself out of this???

 

sometimes you can loose them up by driving slowly with the lugs a little loose. Only recommended as a last resort

 

0k i sadly to say don't see that doing anything except my wheel falling off sorry, i was thinking thying to freeze it to shhrink it but maybe using the die grinder might work on my dremel now i just how to go buy the bit dang it but is there any other tools by like snap on or mac or matco something or somekind of trick??

 

you put the lugs on finger tight drive forward slowly wiggling the car back and forth. It works wonders for breaking rotors loose

 

you mean just like in my driveway and go back and forth on the wheel ok that would work if i had somewhere to get a screwdriver or something to grip but i can't get it to grip anything i don't its that tight anymore i just need someway to get a grip on it!

 

yeah it will break the bond between the screw and the rotor making it easier for you to get it out.

 

ok but i have no way to even move it , there is no way to get it to turn or grip it with any kind of tool? it won't bakc itself out there is plentyof room for it too move and it hasn't at all yet ive used every kind of lube there is and a torch no luck to heat it up or melt whatever bit broke off in the whole. I need help here

 

any techs have any ideas?

 

someone please help me out here!!!

 

I have done this before, take a hardened carbon steel drill that is the same diameter as the screw and drill it out. To get the drill but to bite use a hardened center punch and a hammer to put a dent into the screw.

 

well ill be going out to buy more tools tomorrow YAAAY i know its great but we will see if i can make some progress and rip some stuff up!!!

 

soi got a carbide bit for my dremel and well it did nothing at all i cleaned up the rotor hat hahaha yeah like it needed but now what am i to do i cannot dril into the broken bit at all!!!

 

If the broken bit is sticking out of the hole, pull it out, then drill. If the bit is inside the hole, to where you can't pull it out, there is nothing left holding the drum on, and you should be able to pull it off. Maybe I need a picture of what you have, but it shouldn't be that hard to fix.

 

hey fancy talking to you about this one but the threaded part of the screw is still in the rotor and will not budge, the part of the screw that you could use a phillips driver with is gone and now the threaded part is only there and its a little polished slug that i can't drill into to save my life nothing with dig in and bite into it@!!!

 

Is the drill bit the same size as the screw hole? Smaller/Larger? Try a different size bit (carbide tipped).

 

well i got a carbide tipped dremel bit but well u can't do too much with it since there is no room to get into the area and i have tried every sized bit but nevered seem a carbide tipped drill bit, cutting bits not drill bits?

 

ok im getting annoyed i need ot find a way to drillinto this. I have to drill into a broken bit in the center of the screw that will not budge

 

A dremel is turning way too fast man (high rpm). That's why it won't bite. You need a drill. If the other bit is still in there try to break it off as deep as you can. It will be easier to drill. Use a bit that is tight in the hole, so it can't move around on you.


Your either going to have to try and grab the other bit with a pliers or something, turn it to the left, and pull it out. Or drill through it and the screw. I would try my best to turn it and pull it out.


Modified by BLKFLSH at 11:05 PM 1/28/2006

 

no i was using the dremel bit real slow it wasn't meant to drill but cut but i thought it might be able to bite a little and the screw extractor bit broke off even with the screw so its flat which is like all polished and smooth so its freakin hard to get anything to even sit in the center of the screw i have been using low speed cutting oil and a good amout of pressure taking my time. I can't get anything to work and i don't want to have anyone do this for me wheres the fun in that!!!!!