What type of drill bit do you use for drilling rims?

Discussion in 'Observed Trials Discussion' started by trialsmasta, Nov 17, 2004.

  1. trialsmasta

    trialsmasta Guest

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    What type of drill bit do you use? jobber, step, hole drill etc? What should I use for best results?
     
  2. chronic

    chronic Dungeonmaster's Guide

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    Hole saw, but an actual metal drill bit works best. But in cdn funds a 3/4" drill bit costs like 34$ So for one drilling...I dont think it's worth it. Borrow one.
     

  3. Tanner

    Tanner New Member

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    yeah, and good luck finding a drill that can fit a 3/4" drill bit without having to remove the chuck
     
  4. chronic

    chronic Dungeonmaster's Guide

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    Some are 3/4" all the way down the bit...but most are like 1/2" or 9/16" so you can actually use it with regular chucks.
     
  5. Tanner

    Tanner New Member

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    Most drills are 3/8", so even still, that'd suck. Most of the heavy duty drills are 1/2" or 5/8"
     
  6. digby

    digby New Member

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    do center punch it

    dont use a hand drill.


    I skipped the first one, did the 2nd one. Almost snapped my wrist off a bunch of times.
     
  7. trialsmasta

    trialsmasta Guest

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    I don't think my rim will fit on the drill press at work. I'm pretty much stuck with the hand drill
     
  8. digby

    digby New Member

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    better get yourself a wrist brace.
     
  9. hydroboy

    hydroboy "Jak se mas"

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    I use a normal drill bit, 27/32", goes well, and a hand drill, ive drilled out 3 rims so far, never had a problem, but you need to slowly increase the size of the hole. Start with a really really small drill bit, and just work your way up skiping a few drill bits each size upgrade. Works well, takes a long time though.
     
  10. norco tt

    norco tt New Member

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    if i was u i would go to a bike shop and get it done if its cheat..........then if they screw up u get a new rim
     
  11. seandom

    seandom New Member

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    use the hole saw. i got great results with mine.
     
  12. trialsmasta

    trialsmasta Guest

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    Did you use a hand drill?
     
  13. seandom

    seandom New Member

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    yup. i just held the rim between my legs and drilled down through it with the hole saw.
     
  14. RobbieP

    RobbieP OTN FOR A THOUSAND MORE YEARS I SAY

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    BUY A TRYALL RIM
     
  15. GarthMc

    GarthMc Active Member

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    If you want the best holes, do it in three stages, first with a centre drill, then with a 10mm mill piece, then with your final hole size mill piece. And do all of that in a drill press.

    Mill pieces are the shit they leave the smoothest looking hole possible as their sides are designed to cut, not just as flutes for removing cut material.
     
  16. trialspads

    trialspads TrialsPads.com

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    I was thinking the same...hell they even have super wide rims. Who cares about the brakes :rofl:
     
  17. trialsmasta

    trialsmasta Guest

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    Are you talking about end mills?
    http://www.nachi-fujikoshi.co.jp/eng/new/pre/img/dlc.jpg
     
  18. GarthMc

    GarthMc Active Member

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    I'm not sure what they're proper name is, but it's the same tool you would use if you wanted to cut and L Shaped (or other odd shape) groove in the surface of a bit of metal.