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Under further investigation the back half of the now hollow bolt was still intact. Cripes!
I tried the tricks and tips in this thread. Tried the screw extractors I had. Tried shoving about anything in there I could… nothing budged. I resigned myself to drilling it out but as I pulled out the box o’ bits again had a thought. When the largest size I’d drilled (9/64”) was in there, it got bound up a couple times and the bolt twisted just slightly inwards. And there was a bit of debris in the hole from where the front and back half said adieu. AND I needed to unscrew this remainder counter-clockwise from the backside, which is of course the same direction as clockwise from the front. Wait a minute - I’ve got right-handed bits and I need it to turn right! Partway in at really slow rpm the bit started to bind, for once what I wanted. Slipped a little so I tightened the chuck and kept going. Finally it caught on the bit with enough friction to unthread itself out the back! Success! Ran a tap through but haven’t checked quality of threads yet. But couldn’t be happier. Thanks again for all the advice! I guess I should just do as the bike butcher does and drill it all the way out but I think I’m too invested in these threads now! (Gugie actually gave me some fork dropout alignment pep talks via email on this slow moving project). https://cimg6.ibsrv.net/gimg/bikefor...4a9f50dda9.jpg Did I see rotation???? Tell me I saw some rotation!!! https://cimg2.ibsrv.net/gimg/bikefor...c1dfe8fcbb.jpg For a second I wondered if I’d have to get it off with the bit in the hole before I realized I could just pull the bit out of the chuck… |
Originally Posted by AJI125
(Post 22404927)
Under further investigation the back half of the now hollow bolt was still intact. Cripes!
I tried the tricks and tips in this thread. Tried the screw extractors I had. Tried shoving about anything in there I could… nothing budged. I resigned myself to drilling it out but as I pulled out the box o’ bits again had a thought. When the largest size I’d drilled (9/64”) was in there, it got bound up a couple times and the bolt twisted just slightly inwards. And there was a bit of debris in the hole from where the front and back half said adieu. AND I needed to unscrew this remainder counter-clockwise from the backside, which is of course the same direction as clockwise from the front. Wait a minute - I’ve got right-handed bits and I need it to turn right! Partway in at really slow rpm the bit started to bind, for once what I wanted. Slipped a little so I tightened the chuck and kept going. Finally it caught on the bit with enough friction to unthread itself out the back! Success! Ran a tap through but haven’t checked quality of threads yet. But couldn’t be happier. Thanks again for all the advice! I guess I should just do as the bike butcher does and drill it all the way out but I think I’m too invested in these threads now! (Gugie actually gave me some fork dropout alignment pep talks via email on this slow moving project). Did I see rotation???? Tell me I saw some rotation!!! For a second I wondered if I’d have to get it off with the bit in the hole before I realized I could just pull the bit out of the chuck… |
As an addendum to this, I have a big 115 piece set of cheap drill bits that is often very handy for in between sizes. It sometimes comes in very useful.
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Needle nose vise grips
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