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O/T Where to get custom size ball end mills?

Discussion in 'Uncategorized Threads' started by skeet_man, Jul 22, 2008.

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  1. skeet_man

    skeet_man Well-Known Member

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    Need ideas on where to get a 53/64" ball end mill. Was going to make weights for my new kolar gun for between the barrels, but it turns out the diameter i need is not readily available. I've already figured out how to make the weights using a drill bit and lathe instead of a mill, but it'll take me 5x as long than if I can just find the right mill. Uncoated HSS 2 flute will be fine.
     
  2. Brian in Oregon

    Brian in Oregon Well-Known Member

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    Find a shop that resharpens end mills. Often they can grind whatever contour you need. I needed some custom radius cutters made, and had such a shop grind them for me.
     
  3. GunDr

    GunDr Well-Known Member

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    Skeet_man,

    Keep in mind that you'll need to put some kind of rubber strips between the weight and the bbls.

    So, is the 53/64" you're looking for the bbl diameter? I would guess that maybe going with a 7/8" dia cutter, then installing the appropriatly thick rubber strip. A quick calculation puts that strip at about .015" thick.

    Doug Braker
     
  4. skeet_man

    skeet_man Well-Known Member

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    Doug- The 53/64" measurement came from one of the factory kolar between the barrels weights. I'd thought about 7/8", maybe i'll give that a try.

    Brian- Thanks for the suggestion, that'll probably be ALOT cheaper than having one made.
     
  5. cueguy2

    cueguy2 TS Member

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    Brian is exactly right. Most of those shops have boxes of old cutters that can be sharpened to your dimensions. I have done it many times. Nubs Wagner
     
  6. alpine

    alpine TS Member

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    More than likely they would have a real close ball end mill that size already. After a couple resharpens the end mill would be down to that size.

    I made friends with a local resharpen shop and they had tons of end mills that were resharpened and never picked up. I got a lot of end mills for what they would have gotten for scrap steel. A great deal for both of us.
     
  7. Steve NJ

    Steve NJ Member

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    Takes a pretty stout milling machine to mill steel with a 53/64 dia ball mill. Just sayin...
     
  8. skrap

    skrap Member

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    I agree with Steve NJ. A 2-fluter that size....put a dime betweeh the cheeks of your butt and hang on!!!

    Hit'em All

    Skrap
     
  9. Brian in Oregon

    Brian in Oregon Well-Known Member

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    A two-fluter will work - if you feed the material real sloooooooooooow and have the keyways tightened up. A lot.
     
  10. GunDr

    GunDr Well-Known Member

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    Those weights that Kolar offers/offered, were cut on a rise and fall, Cincinatti horizontal mill.

    Doug
     
  11. skeet_man

    skeet_man Well-Known Member

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    Doug- Thanks for the info. I'd wondered about that, thats what the machine marks looked like.

    It looks like i'm going to just get a couple of the kolar weights and mill them down to size, probably easier in the long run than trying to mill my own.
     
  12. 800Shotgun.com

    800Shotgun.com TS Member

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    Ian,
    I will have some made in a few weeks.
    Let me know if you want one.
     
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