How NOT to drill out airflow on KFL (type)

[the4thpower3]

So, I wanted another Astro clone in all SS - I found one on Desire ecig for cheap. I also found a KFL clone for $20 there. So I ordered it cuz I love my Russian 91%. I thought I could drill out the airhole to make it more of a juice guzzling cloud machine.
I didn't think this one out much. lol.

The quality is so-so and I only paid $20 - so I thought I'd just jump right into it without even testing it out in stock configuration.
To make a long story short, the original hole looked like it was drilled straight in, but it was actually was a slight angle.
Being impatient, I broke off a 1/16" drill bit in it, then a 5/64". Then I decided to use a tapered carbide bit in it to get the broken off bits out of it. Since the hole wasn't straight I decided to make it even bigger to make it a nice straight hole.

It still vapes well, but looks a little funny now.
I was even considering drilling out the 510/airtube - but it's already as big as it's gonna get.

Sorry, I messed all the pic sizes up too.
Oh and that's a nano kit on it - didn't come like that.

 

[dw'struth]

Hey most would have quit after the broken bits. Is that hole as big as it looks!?

 

[Xcighippy]

Looks like you know your way around a metal shop. I probably would have abandoned that hole as soon as I broke the bit off in it, plug it with a slug of aluminum and drill fresh on the other side. However you earned extra credit for sticking it out and salvaging it!

 

[Ibrahim Prophet]

That's how they do air holes in Texas.

 

[Bunnykiller]

I have a R91C also and noticed it was a bit tight for my preference too... thought about opening it up a tad. So I took it all apart, looked at the design and saw the + pin tube hole was at max dia and the bottleneck in airflow design... I put it back together and ordered an HCigar 3.1...

 

[Revelene]

That side hole is BIG

 

[Juiceinator]

Lol. That gave me a good morning chuckle.

 

[LDS714]

Kudos for getting the broken bit out. That can be tough.

 

[Heavyrocker]

Drill baby drill.

 

[olooko]

good save, what's next are you going to drill out the center post too?

 

[Knifemaker]

If you don't drill out the center tube hole, you are just spinning your wheels. You can go one size larger than the hole that is already in it. Just go one size larger. No more. It is handy to have a set of bits that are both numbered and lettered in it's kit to keep from going too big.

The biggie here is to be dayum sure to not drill it unless it is already in the block and tightened well. Don't drill it and "Then try to tighten it. It may very well be too delicate after drilling, and break off in the block.

One of these days I am going to re-tap the block on one and fit a larger dia. tube/screw, for a good bit more air. Just to see what it is like! LOL!!!

KnifeMaker