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Rounded Torx chipper bolts !!


treediver
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Impact driver is the only way, short of drilliing the head off the bolt.

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Not sure what people do with their TW's, but on my Farmi's I used to run, I used to replace the bolts every time the knives came out, as they were silly little bolts.

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It's a case of clean the socket out as much as possible before trying to undo them, replace if damaged, and coat the threads with copper grease before refitting. The sockets get damaged if the tool slips out when you're putting torque on, and it's downhill from there. I bought an air impact wrench, and find there's a lot less chance of slipping.

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Yes a hammer impact driver will quickly pay for itself on that sort of job, greatly reducing the time it takes to get the job done.

The shock loading from hitting the end of the tool helps to loosen the bolt in the threads and undo it. Also much less likely to round off the star.

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