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Discussion in 'Observed Trials Discussion' started by trialsmasta, Nov 17, 2004.
What type of drill bit do you use? jobber, step, hole drill etc? What should I use for best results?
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.
yeah, and good luck finding a drill that can fit a 3/4" drill bit without having to remove the chuck
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.
Most drills are 3/8", so even still, that'd suck. Most of the heavy duty drills are 1/2" or 5/8"
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.
I don't think my rim will fit on the drill press at work. I'm pretty much stuck with the hand drill
better get yourself a wrist brace.
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.
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
use the hole saw. i got great results with mine.
Did you use a hand drill?
yup. i just held the rim between my legs and drilled down through it with the hole saw.
BUY A TRYALL RIM
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.
I was thinking the same...hell they even have super wide rims. Who cares about the brakes :rofl:
Are you talking about end mills?
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.