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  1. #1
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    Default Bench Grinding Wheel

    What is your bench grinding wheel of choice for sharpening HSS drills. Not that I do it often anymore since most drills are carbide but I sharpen like one a week.

    At my last shop I have no idea what the wheel was but it worked good. Both wheels on this grinder seem to be too coarse compared to what I am use to.

    What grit and what style works best?

  2. #2
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    I use a pink colored wheel (forgot grit #). And it is soft as wheels go.
    In my sharpening softer wheels make things come out better.

  3. #3
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    I second the pink (RA abrasive) choice for HSS.

    On a 12" 1800 rpm grinder I have a 24/36 porus blend on the coarse side and a 60 grit on the other. The bond is pretty soft. That said this is HSS only. Both came from Eagle Grinding Wheel Corp in Chicago upon their suggestion. It's been a great combination. Custom wheels, not cheap but worth evey penny in terms of productivity. Grinding mostly M2 M4 and T15

    IF someone needs a general purpose grinder they can step up to the belt machine or the ubiquitios 8" baldor with a norton "brown wheel" which is cooler cutting than the stones Baldor ships with.

    But to be honest no one used the 8" Baldor once we got the 2" x 72" belt machine on a VFD. Pick your belt and dial up your Speed (0 - 5600 sfm) platen or contact wheel.

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  5. #4
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    My pink wheel was obtained from Molemab Abrasives when they had a warehouse in Mountain View, CA.
    I could go through the shelves and browse. The 10" wheel is now a 7" wheel.
    Very important to grind over the wheel evenly as much as possible. It will take less time to dress
    and the dress operation will remove the least amount.


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