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  1. 14th June 2020, 07:12 PM #1
    david90
    david90 is offline New Member
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    Default spare parts for GMC sliding mitre saw SMS210LS

    The bolt that holds the blade on my GMC saw has seized, and I sheared the end off trying to remove it. Not only that, I also broke a screw extractor trying to get it out. There’s no way that shaft can be redeemed. The shaft is very accessible, having just two small bolts holding a cover plate. It is attached to a bearing and a drive cog and a small alloy housing. Does anyone happen to have this part on an otherwise dead machine? If I can’t find this part, in the fullness of time you will be welcome to cannibalise my saw for the parts you need.
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  3. 14th June 2020, 07:29 PM #2
    Bohdan
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    Are you sure that you were turning the bolt in the correct direction (clockwise) when you broke it? Most screw extractors only work anti clockwise and would make the matter worse.

    There is an extractor that is a rod with parrallel ridges and it is supposed to be hammered into hole. A special nut is then slipped over it and it can be used both clockwise and anti clockwise.

    I can't remember the brand, I have some that I got from Total Tools so you could try giving them a call.
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  4. 14th June 2020, 11:16 PM #3
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    Treecycle
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    Is this the bolt you are after? If it is then it is definitely a left hand thread and you need one of these tapered types of extractors or the type that Bohdan refers to as all the normal ones are for RH threads.
    Having said that, getting the broken extractor out is not easy.
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  5. 15th June 2020, 05:50 PM #4
    david90
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    Omg — I assumed it was a normal thread — I was pulling the wrong way! Which then explains why the extractor freaked out too. I’m in deep do-dos
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  6. 15th June 2020, 05:52 PM #5
    david90
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    Yes — the bolt extractor I was using was for RH thread. The bolt is probably the right one, but I may never know, the way things are looking. Thanks for your input.
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  7. 15th June 2020, 06:57 PM #6
    Lappa
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    I have ground one out with a Dremel and multiple stones. Long job but it worked. If you can get diamond tipped tools for the Dremel then the job will be quicker.
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  8. 15th June 2020, 07:49 PM #7
    Lappa
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    I can’t edit most post for some reason but I remembered this crowd.

    Solid CARBIDE DRILL Bits - Diamond Drill Alternative- Cross Tools Co
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  9. 15th June 2020, 07:58 PM #8
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    Treecycle
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    They are good but in the hands of someone who is not familiar with working with metal they may not be a good option. The grinding road would be the best way as not much can go wrong, just a long tedious job.
    Hopefully someone has a dead saw they wish to dispose of.
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  10. 16th June 2020, 10:47 AM #9
    david90
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    Quote Originally Posted by Treecycle View Post
    They are good but in the hands of someone who is not familiar with working with metal they may not be a good option. The grinding road would be the best way as not much can go wrong, just a long tedious job.
    Hopefully someone has a dead saw they wish to dispose of.
    Thanks everyone for your helpful comments. This repair job got off to a bad start by not getting the drill hole dead centre, despite using a centre punch before starting. I am not at all used to this kind of fine metalworking, so it was probably a bit ambitious. I will cool my heels a bit to see if someone is able to offer the part from an otherwise dead machine
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