Metric drill bits

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I'm sure most of have an assortment of metric wrenches, sockets, etc. How many have a metric drill bit set? Why do you need it? What do you use it for?
 
I have one of those every drill bit size kits but no metric unless by accident. Number, Letter and fractional 1/64ths.
 
I have a set of metric drill bits that I purchased many years ago. I use them occasionally for more critical holes, but usually I just use the closes standard drill bit that is big enough.

I usually buy the cheap tap/drill combos for threading/thread cleaning, I assume that's a metric bit as well.
 
if you do work on metric motorcycles and need to do a heli-coil thread repair you'll use a metric bit to clear the hole.
 
Originally Posted By: Kawiguy454
if you do work on metric motorcycles and need to do a heli-coil thread repair you'll use a metric bit to clear the hole.


Depends.

Lots of metric helicoils (and time serts) use fractional drill bits. But they're 64ths. So, it's got to be a good set, not just a cheap 32nds set.
 
Originally Posted By: Blocker
Are your tyres metric ?


Seriously?

You don't know much about us, do you...
 
And yes, I've got a metric set of bits.

But they're for Woodworking, European hardware in cabinetry often require metric bits. And a fractional approximation will give a poor fit.
 
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I've been told that if your tires are metric you need metric lug nuts, I'm not sure why?
also I had a tire fixed and balanced in Canada and it was out of balance back in the US, I thought the guy at the tire shop was pulling my leg. I had to re balance that tire. It is metric? Now I'm really confused. Was a metric weight used maybe?
 
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Originally Posted By: expat
I use mine for drilling metric holes.

Often prior to tapping metric threads.


+1 and that's what most cars have today. I have a large assortment of bits but use mostly metric.
 
At home I only have metric drills, at work we only have metric drills. There is no use for those wierd fraction thing drills.
 
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