Starfire One wrote:Trying to remove a broke steel screw or extractor bit. Depending bad it is I would attempt a carbide bit to remove it. I gave long ago trying to extract broke screws from aluminum. I just drill them out and oversize for a helicoil or the next size screw.
BTW if you were attempting the tap the aluminum there is a trick to prevent the tap from seizing and breaking easily. Hint it is not tapping oil.
Starfire One wrote:Trying to remove a broke steel screw or extractor bit. Depending bad it is I would attempt a carbide bit to remove it. I gave long ago trying to extract broke screws from aluminum. I just drill them out and oversize for a helicoil or the next size screw.
BTW if you were attempting the tap the aluminum there is a trick to prevent the tap from seizing and breaking easily. Hint it is not tapping oil.
Starfire One wrote:91% Isopropyl Alcohol per AVB's machinist friend if tapping aluminum. And of course removing the bit so often to clean out the cuttings.
38racing wrote:Starfire One wrote:91% Isopropyl Alcohol per AVB's machinist friend if tapping aluminum. And of course removing the bit so often to clean out the cuttings.
I have a bottle actually. Hope I didn't use too much of it washing down the truck boxside I'm repainting.
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