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Posted: 3/24/2006 9:06:26 PM EDT
Damn this ae giving me a headache. I have removed them from 3 of my kits and only messed up 3 drill bits.. I have been drilling them out and then hitting them with a pin punch. I have broken a coupe ad they keep getting stuck. I have drilled them out with 3/16 and 11/64. the punchs often get stuck. This has been a major pain in y ass. Are there any tricks that i am mising?Thanks Jimmy 
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I use a drill press and clamp the trunion securely. Then I start with a smaller bit, like 1/8 and lots of cutting oil. Drill halfway, a little at a time, flip the trunion, drill through. Make sure you don't just blast the hole; drill a little then bring the bit up to clear the shavings and add some more oil. Then switch to a slighly larger bit and repeat. And then a larger bit, etc... Make sure your bits are sharp. Obviously don't work up to a bit that's too big for the rivet hole. Eventually the rivet will spin out and leave a nice clean hole. No punching needed. Lots of cutting oil and allow the bit to cool. No oil and blasting a hole all the way through will bust a bit for sure. Edited because my spelling-fu is weak tonight. |
| 5/32" cobalt drill bit and a drill press. Drill 90% of the way through. Tap it out. Works every time for me. Just make sure you drill level and right through the center. Its a good idea to grind the rivet flat and then mark the center with a center punch so your drill bit does not drift when you start drilling. |
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