Mini rotary tool grinding stones

  1. RonA

    RonA specialist in repairing sealed for life equipment

    Messages:
    1,414
    Location:
    Stockton on Tees, UK
    Bought a rotary tool (dremel like) some time ago & it came with rotary grind stones (cones, tapered, round).
    I have used these & found them very useful for numerous tasks but the stones don’t seem to last, they tend to fall apart before they wear out.
    Anybody recommend a source of quality grinding stones, the tool itself seems up to the tasks I’ve set it.
    RonA
     
  2. brightspark

    brightspark Member

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    27,599
    Location:
    yarm
    RonA and gordon stephenson like this.
  3. Ton-up

    Ton-up Member

    Messages:
    1,415
    Location:
    Essex, England.
    Lidl have 'Dremel' type tools for sale next week. I have been pleased with them in the past and will be going to get more.

    https://www.lidl.co.uk/en/c/diy/c1322/w2

    If you click on the tray of cutters, not the tub of assorted accessories, they have exactly what you want, 2 for £4!!
     
    gaz1 likes this.
  4. Kram

    Kram Member

    Messages:
    677
    Location:
    Sussex
    Never liked the stones. Get fine toothed 3mm carbide burrs for metal, they last forever also being quicker. Even better 6mm shank burrs in a die grinder. For soft materials plastic and rubber, a tyre golf ball, but I have only seen with 6mm shank.

    Could use a new burrs if anyone can recommend, my 3mm is snapped but still useable and the 6mm both over 10 years old. They get a lot of use -every time I drill a wonky hole and it needs be adjusted.
     
    RonA likes this.
  5. Brad93

    Brad93 M J B Engineering

    Messages:
    6,554
    Location:
    Essex
    They’re called mounted points.

    Buy the best you can afford.

    Pferd are great. Otherwise Norton, SAIT, Kingspor etc.
     
    RonA and eLuSiVeMiTe like this.
  6. Brad93

    Brad93 M J B Engineering

    Messages:
    6,554
    Location:
    Essex
    pferd
     
  7. Shox Dr

    Shox Dr Chief Engineer to Carlos Fandango

    Messages:
    14,202
    Location:
    East Yorkshire
    I thought they were mini grenades, as they explode on me after 5secs:laughing::mad:. Always used burrs when Pushed to use one. Never found them to be good at anything.

    Once walked past a guy cleaning his drive gates with a wire wheel:laughing: god knows how long it took him, if they ever got finished. I didn't bother him, he looked busy
     
    RonA and zx9 like this.
  8. earthman Member

    Messages:
    1,145
  9. pedrobedro

    pedrobedro Man at Matalan

    Messages:
    9,993
    Location:
    CX Derbyshire
    My main tool for grinding with my Aldi version is the rubber expanding drum with the abrasive sleeve. I buy replacements whenever I see them on sale.
     
    Hopefuldave likes this.
  10. Brad93

    Brad93 M J B Engineering

    Messages:
    6,554
    Location:
    Essex
    A set of decent carbide burrs for Steel from Pferd will set you back about £100. Most of the 6mm shank burrs are £20-30 a piece.
    I’ve some micro cut burrs that are great too.

    Mounted points are much better for deburring or chamfering.
     
  11. RonA

    RonA specialist in repairing sealed for life equipment

    Messages:
    1,414
    Location:
    Stockton on Tees, UK
    That’s exactly my experience of the grinding stones (points) that’s why I’m looking for something better.
    RonA
     
    Hopefuldave likes this.
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