Koni Yellow Rears - Top Hat Drill size

[TMF]

Originally Posted by Jawnathin

Off topic from the thread, but since I messed up...

Wrong way -


Right way -

I'm bumping this one up from the dead...do you mind re-uploading these pics? I'm doing the install this week and want to make sure I assemble the rears properly.

Thanks!

[TMF]

Originally Posted by TMF

I'm bumping this one up from the dead...do you mind re-uploading these pics? I'm doing the install this week and want to make sure I assemble the rears properly.

Thanks!

Well in case anyone ends up needing this for future reference...here is a picture of the correct way to orient the rear spring perch:



And I ordered a 31/64th drill bit from Amazon to drill out the rear top hats, and it worked perfectly.

[burdickjp]

Originally Posted by TMF

And I ordered a 31/64th drill bit from Amazon to drill out the rear top hats, and it worked perfectly.

If you're ordering a drill, why not just order the 12mm drill?

[TMF]

Originally Posted by bur****jp

If you're ordering a drill, why not just order the 12mm drill?

Find me a 12mm drill bit that can drill metal and I'd buy it. Couldn't find one easily when I was searching.

[burdickjp]

Originally Posted by TMF

Find me a 12mm drill bit that can drill metal and I'd buy it. Couldn't find one easily when I was searching.

I actually get a lot of my machine tool consumables from Amazon because of the free shipping. It was a bit easier when they had Amazon Supply, but you can still find stuff on the normal site.
High Speed Steel should be all you need. I prefer screw machine length drills because they're stiffer than jobber length. I've had good luck with the brand YG-1.
Here's the screw machine length version: http://amzn.com/B009NND9JO
If 102 mm isn't long enough, here's the jobber length version: https://amzn.com/B009NNO2PY

[vroom4]

Wow you guys are over thinking this...a Hf drill bit will work just fine for the task....hell, you can return it when you're done haha

[burdickjp]

Originally Posted by vroom4

Wow you guys are over thinking this...a Hf drill bit will work just fine for the task....hell, you can return it when you're done haha

I'm of the mind that you use the right tool for the job. If Koni specifies a 12 mm drill, there's a reason.
It helps that my shop is entirely metric.