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  • @PhilDAS and @JurekB - cheers.

    I had wondered if I needed to order some helicoils at the same time.

    @mdcc_tester - you might have a bright idea on this one....

    I have a thread I'd like to clean/chase an M8 hole but there is an object (an exhaust) in the way so I can only get less than a 1/4 turn on it.

    Is there a safe way to extend the chasing bit(?) by 10cm?

    It's a 4 sided jobby:

    Thanks.

  • Is there a safe way to extend the chasing bit(?) by 10cm?

    Are you really looking for a pulley tap but didn't know it's called that?

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